JPH11356094A - Power generation operation management system - Google Patents

Abstract

(57) [Summary] [Problem] To realize the operation management that was conventionally performed for each power generation unit by implementing it in units of power plants, and to efficiently perform operation management in large-scale power plants with fewer personnel. Provided is a power plant operation management system that can be performed well and safely. SOLUTION: A plurality of unit monitoring control means 3 provided for each power generation unit 2 of a plurality of power plants 1 and plant information are respectively fetched from the unit monitoring control means 3 of the plurality of power generation units 2, and each of the power generation units has General monitoring means 5 for monitoring the state, and operation command means 7 for outputting an operation command to each power generation unit to respond to the abnormality when the abnormality of the power generation unit is detected by the general monitoring means 5. An operation management device 10 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power plant operation management system that manages a group of power generation units in a power plant.

[0002]

2. Description of the Related Art Conventionally, a power plant is operated for each individual power generating unit in the power plant. For example, one group of 5 to 6 operators (shift workers) is assigned to each of the power generating units. By taking measures such as establishing a system, it has been possible to quickly respond to the occurrence of abnormalities in the power generation unit. Automated operation of power plants has progressed with the times, and the number of maintenance personnel per power generation unit has certainly been reduced.

However, the operation management mode for each power generation unit is still firmly established, and
There is still a tendency for the required number of personnel to increase in proportion to the size of the power plant (the number of power generation units).

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention realizes that the operation management conventionally performed for each power generation unit is comprehensively performed for each power plant, thereby achieving the operation management for a large-scale power plant. It is an object of the present invention to provide a power plant operation management system that can efficiently and safely continue the operation with less personnel.

[0005]

To achieve the above object, a power generation operation management system according to the present invention comprises: a plurality of unit monitoring control means provided for each power generation unit of a plurality of power plants; General monitoring means for taking in plant information from the unit monitoring control means of the power generation unit and monitoring the state of each power generation unit, and
And a general operation management device having an operation command unit that outputs an operation command for responding to the abnormality to each of the power generation units when an abnormality of the power generation unit is detected by the general monitoring unit. I do.

The present invention also provides a power generation operation management system according to the first aspect of the present invention, wherein the general operation management device includes a common equipment operation state receiving means for inputting an operation state of the power station common equipment and a common equipment operation state reception means. The system further includes a unit common monitoring means for monitoring the operation state of the taken-in power plant common equipment.

Further, the present invention collectively manages the power generation units of a plurality of power plants, and distributes the output commands for the plurality of power generation units collectively from the central power supply command station to the plurality of power generation units. A general operation management device having a distribution unit for performing the operation, a selection unit provided for each power generation unit to switch whether or not to receive a command from the general operation management device, and a state of the selection unit to the general operation management device. And a unit control device having communication means.

Here, the general operation management device further includes an operation characteristic database means for storing operation characteristics for each output level of each power generation unit, and the distribution means stores the operation characteristics stored in the operation characteristic database means. The configuration is such that the load distribution among the power generation units is calculated based on the calculation.

[0009] Further, the general operation management device, when the output command value for the power plant collectively given from the central power supply command station is larger than the total value of the allowable maximum power generation amount of the power generation unit being activated, The unit has a means for outputting a start command to the unit.

Further, the general operation management device further includes means for outputting a stop command to the power generation unit when the output command value for each power generation unit distributed by the distribution means is smaller than the allowable minimum power generation amount of the power generation unit. It was configured to have.

The present invention also relates to a power plant having a plurality of power generation units, which is controlled in a centralized manner. A power plant general management device having a distribution unit for performing the power generation, a selection device provided for each power generation unit, for selecting whether or not to receive a command from the power plant general management device, and a state of the selection device for the power plant. And a unit control device having means for communicating with the central control device.

Further, the present invention provides a general operation management device for managing a plurality of power plants each having a plurality of power generation units, and a power plant for managing the plurality of power generation units collectively for each power plant. An integrated management device, and a plurality of unit control means for controlling each of the power generation units, wherein the integrated operation management device outputs an output command for a plurality of power plant batches given from a central power supply command center to a plurality of power generation units. Power plant output distribution means for distributing and instructing the power plant, and the power plant general management device includes unit output distribution means for distributing and instructing the output command from the power plant output distribution device to a plurality of power generation units. And the unit control means includes output control means for controlling the output of the power generation unit based on an output command from the unit output distribution means.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a power generation operation management system according to a first embodiment of the present invention.

The power generation operation management system includes a plurality of power plants 1
It is a system that performs operation and management of. Each power plant 1 has a plurality of power generation units 2. Each power generation unit 2 has unit monitoring control means 3. The unit monitoring control means 3 takes in a process value from a plant device in the power generation unit 2, performs a predetermined monitoring control operation from the taken in process value, and gives a control command to the target device based on the calculation result. I do.

In the system, the equipment of each power station 1 and each power generation unit 2 does not need to be the same, but one power generation unit 2 in each power station 1 is individually controlled by one unit monitoring control means 3. They are common in that they are monitored and controlled. Further, in the power generation operation management system, a system in which a plurality of power generation subunits further exist in each power generation unit 2 such as a combined cycle power plant may be mixed.

Each power plant 1 is connected to an input / output processing unit 4 in one general operation management device 10. That is, the general operation management device 10 obtains information from the unit monitoring control means 3 of each power generation unit 2 in each power plant 1, and acquires the information from each power generation unit 2 in each power plant 1.
It is possible to output a control command to the unit monitoring control means 3.

The general operation management device 10 includes the general monitoring means 5
The monitoring and abnormality detection of each of the power generation units 2 in each of the power plants 1 are performed, and the operation status of each of the power generation units 2 is displayed to the operator of the general operation management device 10 in a hierarchical expression that is easy to grasp. In addition, the general operation management device 10 inquires each power generation unit 2 for detailed information as needed, and further,
An emergency stop command, a standby machine start command, and the like for the power generation equipment in each power generation unit 2 are transmitted to each power generation unit 2 through the operation command means 6. In addition, the general monitoring unit 5 responds to a power generation request from the maintenance command unit 7 that supervises the maintenance plan of each power generation unit 2 and the power generation request from the central power supply command station 11, and generates a power output of each power generation unit 2 for the purpose of stable power supply. To the power generation planning means 9 and the load distribution means 8 for controlling the operation status of each power generation unit 2.

FIG. 2 is a functional block diagram of the general monitoring means 5 in the general operation management device 10. Abnormality detection means 13
The abnormality information detected by the unit monitoring control means 3 of each power generation unit 2 is taken in periodically or every time a state change occurs through the unit monitoring means 12 provided for each power generation unit, and the abnormality content and abnormal state Is detected. Hierarchical structure information providing means 1
4 displays the abnormal state / operating state of each power generation unit 2 on the monitor 15 in a hierarchical structure based on the information detected by the abnormality detecting means 13.

FIG. 3 is a display example of the operation status of each power generation unit 2 in a hierarchical structure by the hierarchical structure information providing means 14. In the case of level 1, "in operation" for each power generation unit
“Stopped” and “Abnormality” are displayed so that they can be identified by changing the display format. The display at the time of occurrence of an abnormality includes "major failure", "minor failure" and others. "Severe failure" means a failure that seriously affects the entire plant equipment and makes it impossible to continue operating the equipment. "Minor failure" means that a failure has occurred in some devices and does not affect the continuation of plant operation for the time being, but attention must be paid to the devices in the corresponding system. In addition, information necessary for an operator of a device that monitors and controls the power generation unit 2 (for example, the general operation monitoring device 10 or the like) to make a decision, such as whether to automatically stop in an emergency or to stop by an operator's judgment and operation. provide. In the case of level 2, the range of the output that can be controlled (automatic operation is possible) is displayed. If an abnormal stop unit occurs, the power generation output of the other power generation unit 2 is controlled to request the central power supply command station 11 The determination information for the backup control for securing the power generation output to be performed is provided. When the power generation unit 2 is automatically stopped automatically due to a serious failure, the effect is displayed as "unit automatic exclusion", and when the power generation unit 2 is a minor failure, the operating state of the failed system is displayed. By displaying the operating state of the faulty system, the operator can make a decision such as planning a stop plan or performing a normal stop by an operation. In the case of levels 3, 4,..., More detailed information for an operation plan, a stop plan, a recovery plan, and a periodic inspection plan is provided.

The above display level is arbitrarily selected by the operator. Moreover, you may make it classify every power station and display a state.

As described above, according to the present embodiment, the single general operation management device 10 monitors the abnormality of each of the power generation units 2 of the plurality of power plants 1, and further monitors each of the power generation units of the plurality of power plants 1. It is possible to generate and notify a control command for emergency measures and the like to the control unit 2. That is, equipment for monitoring and control conventionally arranged for each power plant or each power generation unit is integrated into one general operation management device 10.
This enables efficient operation of the monitoring and control equipment, and also reduces the number of operating personnel for a plurality of power plants in total.

Further, according to the present embodiment, when an abnormality occurs in a certain power generation unit 2, the load carried by the abnormal unit can be distributed among the normal power generation units of a plurality of power plants. In other words, the flexibility of load distribution increases,
The efficiency of power generation monitoring can be improved. In addition to dealing with abnormalities, an efficient power generation plan can be formulated by examining the power generation plan in units of a plurality of power plants in a normal operation plan, a periodic inspection plan, and the like. The operation plan, the stop plan, the recovery plan, and the periodic inspection plan of the power plant and the power generation unit are executed based on the setting information given from the maintenance command unit 7 of the general operation management device 10.

Regarding the display of the operation status of each power generation unit 2 by the hierarchical structure information providing means 14, the identification display of the power plant 1 is usually written with a power generation model name such as a steam power plant, a combined cycle power plant or a nuclear power plant. In addition to the display method, the display may be performed so as to be identifiable by colors, sounds, symbols, or the like. FIG. 4 shows an example of the power plant identification display. This makes it easy to visually identify each power plant, and it is important to take into account that "abnormalities in a nuclear power plant are given the highest priority in consideration of the impact on the environment.""The combined cycle plant takes a relatively short time to start up" in order to secure the necessary power output as a whole when the power generation unit at the plant stops
It is possible to perform operation monitoring control in consideration of the characteristics of each power generation model.

When an abnormality occurs in a certain power generation unit 2, the occurrence of the abnormality is provided to the operator in a hierarchical structure through the monitor 15 by the hierarchical structure information providing means 14, and as shown in FIG. The information necessary for accurate grasp of the abnormal situation and judgment of the automatic operation is obtained from the corresponding power generation unit 2 by 16.

In the case of the example shown in FIG. 5, the occurrence of an abnormality in which the XXX temperature exceeds the abnormality detection limit value is detected by the abnormality detecting means 13, and the hierarchical structure information providing means 14 monitors the abnormality occurrence status through the monitor 15 in the hierarchical structure. The information is provided to the operator by being displayed as shown in Information Example 19. At this time, the detailed information inquiry means 16 inquires the detailed information as shown in the detailed information example 20 about the corresponding power generation unit 2. In this detailed information example 20, X, which is the cause of the
Not only the current value of the primary input of XX temperature but also the trend monitoring information based on the historical data of the past fixed time is queried. In this example, the trend monitoring information indicates that if the abnormal situation continues as it is, the current abnormality detection level a will eventually reach the automatic stop level b in remote operation, and if the abnormality further progresses, an automatic trip will occur due to the interlock of equipment protection. c. Therefore, the operator of the general operation management device 10 can immediately determine to stop the power generation unit from the current situation.

When the XXX temperature reaches the remote automatic stop level b without stopping the power generation unit, as shown in an automatic operation judgment example 21, the XXX temperature is stored in the judgment database 18 managed by the automatic operation judgment means 17. The condition of “rule No. X” among the various operation rules that have been established is satisfied,
The “A pump remote automatic stop rule” corresponding to “XXX temperature high” is activated by the automatic operation determination means 17 and notified to the operation command means 6. In response to this notification, the operation command means 6 executes the “A pump stop command” in the operation command example 22 for the power generation unit 2. The power generation unit 2 performs the A pump stop operation in response to this command.

By the way, when the A pump stops (trips), the supply carried by the A pump stops, which may cause a serious trouble in plant operation. Therefore, “rule No. Y” among the rules stored in the determination database 18 is applied. That is, when the A pump trips during the plant operation in a state where the B pump installed as a standby unit for the A pump is normal and the automatic operation is permitted, the automatic operation determination unit 17 determines “Rule No. Y”. Commanding means 6
Notify. In response to this notification, the operation instruction means 6 instructs the corresponding power generation unit 2 to “start the B pump” in the operation instruction example 22. Thus, the power generation unit 2 receives the instruction and performs the operation of starting the B pump.

As described above, the automatic driving judging means 17 follows the rules stored in the judgment database 18 according to the rules.
It performs a part of the operation operation by the operator, such as issuing a command to stop the malfunctioning device or a command to start an alternative device to the stopped device.

In the example shown in FIG.
Indicates the history data of the abnormality that has occurred, abnormality detection level a, remote automatic stop level b, and interlock operation level c.
The two limit values are inquired as detailed information, but as the other detailed information, the current image information of the site where the abnormality was detected is obtained together with the normal image information, and the difference between each image information is used to grasp the abnormal situation at the site Inquiry may be made as information for performing. Also, by querying the history information on the number of past abnormalities, it is possible to judge whether the abnormalities are transient or chronic, and use the results to formulate investigation plans and repair plans for the causes of the abnormalities. You may.

If the effect of the abnormality is not limited to the stoppage of the corresponding device but leads to a trip of the power generation unit 2, the power generation of the other power generation units 2 is performed in order to secure the required power output of the central power supply command station 11. You have to review the output. In this case, as shown in FIG. 6, the control is performed not only by controlling the overall monitoring means 5 and the operation command means 6 but also by including the load distribution means 8 and the power generation planning means 9.

FIG. 6 shows a load distribution adjustment example 23 in such a case. Here, it is assumed that the No. 1 to No. 5 power generation units 2 are present, and the total rated power generation output is 2, 3
00 MW. In the initial state, the No. 5 unit is stopped and the No. 1 to No. 4 units are 800 MW,
0,200,300MW for a total of 2,300MW
And 3 more without activating Unit 5
There is room to generate 00 MW.

Now, if the Unit 4 is tripped due to an abnormality, the Unit 4 was responsible for 300
It is assumed that the power generation output of the MW has decreased. At this time, the overall monitoring means 5 detects the trip of the No. 4 unit and notifies the load distribution means 8 of this. The load distributing means 8 uses the generator output 300M which the No. 4 unit has been carrying in order to secure the required power generation amount of 2,300 MW from the central power supply command station 11.
A primary measure is taken to secure W by increasing the power output of the other operating units. In this example, a load increase command of +200 MW is issued to the first unit and +100 MW is issued to the third unit. However, when only units 1 to 3 are operated, the required power generation amount is 2,
300 MW is secured, and there is no margin for controlling the power generation output. Therefore, as a next step, the power generation planning means 9 formulates an operation plan of a total of four units, which is the number of units No. 1 to 3 in operation and the unit No. 5 in suspension. Thereby, the margin of the 300 MW power generation supply capacity is secured again. In addition, the load distribution by the four-unit operation is adjusted again so that the number of units for the maximum output operation is minimized. For example, 5 started later
The power generation output of the No. 1 unit is reduced to 200 MW, and the power generation output of the No. 1 unit in the maximum output operation state is adjusted to be reduced to 800 MW. In this case, there are two units of the maximum output operation, the unit 2 and the unit 3, which are one less than the measures at the preceding stage. Note that a plurality of general operation management devices 10 can be provided for each model such as a normal steam power plant, a combined cycle power plant, and a nuclear power plant. This makes it possible to perform operation management in consideration of the operation characteristics of each model. Also, do not classify by model,
A geographical factor may be prioritized, and a plurality of different power plants, such as a thermal power plant, a nuclear power plant, and a hydropower plant, may be collectively operated and managed by one general operation management device 10. If one general operation management device 10 covers a geographically wide area, the efficiency of operation management of a plurality of power plants can be further improved, and the effect of further reducing the number of operators can be obtained.

Further, as shown in FIG. 7, a plurality of power plants having a close geographical positional relationship are grouped and the power plants are managed by the power plant general management device 24 for each power plant group. A configuration is also conceivable in which a plurality of power plant general management devices 24 corresponding to each group are managed by one general operation management device 10. In this case, the general operation management device 10
The operation management of a plurality of power plants can be performed by sharing functions with the power plant general management device 24. In the example of FIG. 7, the general operation management device 10 performs each function of the power generation planning unit 9 and the load distribution unit 8, and the remaining general monitoring unit 26 and the operation command unit 2
7. The function of the maintenance command means 28 is transferred to the power plant general management devices 24 of each group. As a result, equipment management of the power generation unit 2 such as abnormality monitoring, emergency measures, maintenance plans, and the like of the power generation unit 2 can be performed by the power plant overall management device 24, and a management form utilizing geographical advantages can be obtained. On the other hand, the general operation management device 10 includes the power plant
Operation management such as coordination of mutual power generation output is performed.

As shown in FIG. 8, by giving all the functions of the general operation management device 10 to each of the power plant general management devices 24 ′, the central power supply command can be directly sent to the plurality of power plant general management devices 24 ′. The power generation unit 2 may be configured to receive a power generation output command from the station 11 and control the power generation units 2 within its own jurisdiction.

Next, a second embodiment of the present invention will be described.

FIG. 9 shows the configuration of the power generation operation management system of this embodiment.

As shown in FIG. 1, this embodiment includes a power supply unit and a fuel facility common to each power generation unit 2 in the power plant 1 together with unit monitoring control means 3 for each power generation unit 2. And a common facility monitoring control means 32 for monitoring and controlling a common facility 31 such as a drainage facility. Overall monitoring means 5 in overall operation management device 10
Is generated by the unit common monitoring means 33.
The operating status information of the common facility 31 is also acquired together with the operating status of the power generation unit 2, and a monitor screen of the operating status of the common facility 31 is displayed on the monitor simultaneously with the monitoring screen of the operating status of each power generation unit 2 as shown in FIG. Thereby, the common facilities 31
It is possible to monitor the operation state of each power generation unit 2 while monitoring the abnormal state of the power generation unit 2. When an event related to the common equipment 31 that affects each power generation unit 2 occurs, an operator can immediately determine the degree of the influence. become able to.

The unit common monitoring means 33 may be configured such that the operating states of the plurality of power generation units 2 can be monitored through comparison.

Next, a power generation operation management system according to a third embodiment of the present invention will be described.

FIG. 11 shows the configuration of the power generation operation management system of the present embodiment.

The general operation management device 10 in the power generation operation management system of the present embodiment receives an output command for the power plant collective given by the central power supply command station 11 and distributes it to each power generation unit 2 in the power plant. Output command distribution means 69 for instructing output. Here, "distributing and instructing the output command for the power plant collectively" means that each of the plurality of power generation units 2 in the power plant satisfies the power generation demand for one power plant. This means setting a required power generation amount for the power generation units 2 and giving the required power generation amount to each power generation unit 2.

Each power generation unit 2 informs the general operation management device 10 of input selection means 51 for switching whether or not to receive a command given from the general operation management device 10 and the selected state of the input selection means 51. And a selected state communication unit 70.

Referring now to FIG. 12, input selection means 51
Will be described in detail. The output command value T1 output from the output command distribution means 69 in the general operation management device 10 is:
The selection circuit section 5 in the input selection means 51 via the communication means 49
7 is input. Further, the input selection means 51 is provided with a mode SW 59 for selecting whether or not the power generation unit 2 receives a command from the general operation management device 10.
The state value M of the mode switch 59 (1: unit side, 0:
The overall operation management device side) is read by the selection circuit unit 57, and the selection circuit unit 57 outputs the output command value T2 set by the output command setting unit 58 on the unit side or the overall value in accordance with the read state value M of the mode SW 59. Operation management device 1
One of the output command values T1 from 0 is selected. Therefore, by selecting the power generation unit by the mode switch 59, the power generation unit 2 is determined by the power generation unit 2 side.
Can be set to give priority to the operation on the side.

In the plant PL, the selection circuit 57
Is used as an output target value, and based on the deviation between the output command value T and the actual generator output P, the output control 101 in the control device causes the plant control valve 10
2 is adjusted to control the plant output P.

The state value M of the mode switch 59 and the plant output P are communicated to the general operation management device 10 by the selected state communication section 52. Accordingly, the general operation management device 10 can determine whether the power generation unit 2 is operating alone or based on a command from the general operation management device 10.

Therefore, during normal operation, the power generation unit 2 can be operated by a command from the general operation management device 10, and the operation work on the power generation unit 2 side can be reduced (operators can be reduced). In addition, at the time of abnormality, periodic inspection, periodic operation test, trial operation, and adjustment operation, the operation of the power generation unit 2 is determined by the power generation unit 2 side.
It can take precedence over the command from 0.

As shown in FIG. 13, the input selection means 51a of the power generation unit 2 may be provided for each system. As a result, maintenance can be performed for each system, and safety and operability can be improved.

Further, as shown in FIG. 14, the selection means 51b of the power generation unit 2 may be provided for each device, so that maintenance can be performed for each device, and safety and operability can be improved. it can.

FIG. 15 is provided with a logic 55 for automatically switching the selection state of the input selection means 51 according to the plant operation status. Input selection means 5
1. By setting in advance the plant operation status when the operation of the power generation unit 2 is prioritized, abnormality, periodic inspection, periodic operation test, and test operation can be performed without depending on the judgment of the operator of the power generation unit 2. Then, a mode is entered in which the operation of the power generation unit 2 is automatically prioritized during the adjustment operation. Thereby, the burden on the operator on the power generation unit 2 side can be further reduced.

Next, a fourth embodiment of the present invention will be described.

FIG. 16 shows the configuration of the power generation operation management system of this embodiment.

The general operation management device 10 in the power generation operation management system of the present embodiment has a power generation planning means 9, a load distribution means 8, and an operation characteristic database means 60. The power generation planning means 9 formulates a power generation plan based on the power generation capacity of each power generation unit 2 in each power station, according to the power generation request amount notified from the central power supply command station 11 via the communication means 49. The load distribution means 8 calculates the power generation costs in a time series based on the operation characteristics and the like of each power generation unit 2 in each power plant, and outputs a load command to each power generation unit 2.

On the other hand, the central power supply command center 11 is provided with a function 71 for predicting a load for each general operation management device 10 and a function 72 for calculating a load distribution for each general operation management device 10. In this way, the central power supply headquarters 11 can reduce the burden on the central power supply headquarters 11 by only managing the power generation capacity and cost of the general operation management device 10.

A part of the function of the central power supply command center 11, for example, the load predicting means 71 can be included in the function of the power generation planning means 9 of the general operation management device 10 side.

FIG. 17 shows the load distribution means 8 in the general operation management device 10 and other details. Each power generation unit 2
The load distribution means 8 that outputs a load command value to the power generation unit stores operation characteristics such as power generation cost, load fluctuation follow-up (time constant), and environmental characteristics (NOX characteristics, etc.) for each output level of each power generation unit 2. With reference to the database 60, an optimal power generation plan is calculated in consideration of the power generation cost, load fluctuation follow-up, environmental friendliness, and fuel holding (there is also a replenishment schedule. It is output and distributed to the power generation unit 2 as a new load command value.

The load distribution means 8 can also calculate an optimum power generation plan for one or more priority factors by selecting and specifying a specific factor (for example, environmental friendliness) as a priority factor. In addition, a high-quality power supply with stable voltage and frequency can be provided in an environmentally friendly manner.

Next, a fifth embodiment of the present invention will be described.

FIG. 18 shows the configuration of the power generation operation management system of this embodiment.

In the general operation management device 10 of the power generation operation management system of this embodiment, the output command distribution means 61
This is a means for distributing and instructing the individual power generation units 2 from the output command for the power plant collectively received from the central power supply command station 11 through the output command receiving means 62, and corresponds to the load distribution means 8 shown in FIG.

The output command for each power generation unit output from the output command distribution means 61 is given to the power generation unit activation determination means 64 and the power generation output command transmission means 66 for each power generation unit 2. The power generation output command transmitting unit 66 transmits the output command notified from the output command distribution unit 61 to the corresponding power generation unit 2.

On the other hand, the power generation unit activation judging means 64
When the operation state of the power generation unit 2 received by the power generation unit operation state receiving means 63 is read, it is determined whether the corresponding power generation unit is currently stopped, and the generated power is distributed to the stopped power generation unit 2. (That is, when the power plant collective output command is larger than the sum of the maximum values of the operable outputs of the power generation units 2 that are currently running), the power generation unit start command transmission unit 65 sends the corresponding power generation units 2
Is instructed to transmit a start command. The power generation unit start command transmission means 65 receives this instruction and transmits a start command to the corresponding power generation unit 2. Accordingly, when the generated power is distributed to the stopped power generation unit 2, the power generation unit 2 can be remotely activated from the general operation management device 10.

Next, a sixth embodiment of the present invention will be described.

FIG. 19 shows the configuration of the power generation operation management system of this embodiment.

In the general operation management device 10 of the power generation operation management system of this embodiment, the power generation unit stop judging means 68 determines whether the output command for each power generation unit notified from the output command distribution means 61 and the power generation unit operation state receiving means 63 are provided. When the received operation state of the power generation unit is input and the power generation amount less than the allowable minimum power generation amount is allocated to the power generation unit 2, the power generation unit stop command transmission means 48
It instructs the corresponding power generation unit 2 to transmit a stop command. The power generation unit stop command transmitting means 48 receives this instruction and transmits a stop command to the corresponding power generation unit 2. As a result, the operating power generation unit 2 can be remotely stopped from the general operation management device 10.

In FIG. 18 and FIG. 19, the general operation management device 10
The operation state of the power generation unit 2 may be monitored from the information received in step 3, and the monitoring result may be notified to the power generation unit start determination means 64 or the power generation unit stop command transmission means 48.

Next, a seventh embodiment of the present invention will be described.

FIG. 20 shows the configuration of the power generation operation management system of this embodiment.

In the figure, a power station control and management device 24 is a device for controlling and managing each power generation unit 2 for each power plant. This power plant control and management device 24 is a central power supply command center 1
An output command distributing means 73 is provided for receiving an output command for the power station collectively from 1 and distributing the command to each of the power generation units 2 for commanding.

Each power generation unit 2 is a power station
Input selection means 51 for switching whether or not to receive a command given from the power supply unit 4, and a selection state communication unit 7 for communicating the selection state of the input selection means 51 to the power plant supervisory device 24.
0.

That is, in this power generation operation management system, the input selection means 51 for switching whether or not to receive a command from the power plant general management device 24 on the power generation unit 2 side.
Is provided, the operation from the power generation unit 2 can be prioritized over the instruction from the power plant general management device 24 by the judgment on the power generation unit 2 side. Further, the selected state is communicated from the selected state communication unit 70 to the power plant general management device 24,
The power plant general management device 24 can determine whether the power generation unit 2 is operating alone or based on a command from the power plant general management device 24.

Thus, the power generation unit 2 can be operated based on a command from the power plant general management device 24 at the time of minor abnormality of the power generation unit 2, periodic inspection, periodic operation test, test operation, adjustment operation, and the like. The operation work on the power generation unit 2 side can be reduced (the number of operators can be reduced), and the operation from the power generation unit 2 side can be prioritized in the case of a serious failure.

Although FIG. 20 shows an example in which the power plant supervisory device 24 directly receives the output command for the power plant collectively from the central power supply command station 11, as shown in the configuration example of FIG. A power plant batch output command from the central power supply headquarters 11 may be received via the general operation management device 10.

Next, an eighth embodiment of the present invention will be described.

FIG. 22 shows the configuration of the power generation operation management system of this embodiment.

The power generation operation management system shown in FIG. 1 includes a general operation management device 10 that comprehensively manages the operation of a plurality of power plants 1 and a power plant management system that integrally controls each power generation unit 2 for each power plant. A management device 24 is provided. Each power generation unit 2 has an input selection means 51 for switching whether or not to receive a command given from the general operation management device 10 and the power plant general management device 24;
And a selected state communication unit 70 for communicating the selected state to the power plant supervisory device 24.

FIG. 23 shows the input selecting means 51 of this embodiment.
The details are shown below. The output command value T1 output from the output command distribution unit 69 of the general operation management device 10 is input to the selection circuit unit 57 of the input selection unit 51 via the communication unit 49.
Similarly, the output command distribution means 73 of the power plant general management device 24
The output command value T3 output from the input unit 51 is also input to the selection circuit unit 57 of the input selection unit 51 via the communication unit 49. Also,
The input selection means 51 is provided with a mode switch 59 for selecting whether or not the power generation unit 2 receives a command from the general operation management device 10. The state M of the mode SW 59 (at the time of plant abnormality: unit side, at the time of normal operation: general operation management apparatus side, at the time of power generation predetermined period inspection: operation of the power station general management apparatus) is read by the selection circuit section 57, and Corresponds to the state M of the read mode SW 59,
The output command value T2 set by the output setter 58 on the unit side, the output command value T1 from the general operation management device 10, or the output command value T3 from the power plant general management device 24 is selected. That is, mode SW
By selecting the power generation unit at 59, it is possible to give priority to the operation of the power generation unit 2 based on the determination of the power generation unit 2 side.

In the plant PL, the output command value T selected by the selection circuit section 57 is set as an output target value, and the output command value T and the actual generator output P are used as output target values via the output control 101 in the control device. By adjusting the plant control valve 102, the plant output P is controlled.

Further, the status value M of the mode switch 59 and the plant output P are communicated to the general operation management device 10 and the power plant general management device 24 by the selected status communication section 52. As a result, in the general operation management device 10 and the power plant general management device 24, the power generation unit 2 is operated independently, or the general operation management device 10 or the power plant general management device 2
4 to determine whether the vehicle is being driven.

As a result, during normal operation, the operation of the power generation unit 2 can be reduced (reduction in the number of operators) by receiving a command from the general operation management device 10 or the power plant general management device 24. When performing operations such as abnormality, periodic inspection, periodic operation test, test operation, and adjustment operation, the operation of the power generation unit 2 may be prioritized over the instruction from the general operation management device 10 when the operation of the power generation unit 2 is performed. it can.

Next, a ninth embodiment of the present invention will be described.

FIG. 24 shows the configuration of the power generation operation management system of this embodiment.

The general operation management apparatus 10 of this embodiment includes a maintenance plan setting means 36, a maintenance database means 41 storing maintenance plan information for each power generation unit, and a load distribution means with reference to the maintenance database means 41. 8 is provided with maintenance command means 7 for notifying the information of the operable power generation unit and outputting operation instruction information to the operation command means 6. In addition, the general operation management device 10 is provided with an interactive unit 35 for an operator to obtain maintenance plan information of each power generation unit 2 from the maintenance database unit 41 and to input a maintenance plan to the maintenance database unit 41. ing.

The maintenance plan setting means 36 comprises a periodic inspection plan setting means 37, an operation test plan setting means 38, an equipment replacement plan setting means 39, and a recovery plan setting means 40.

Next, the function of the periodic inspection plan setting means 37 will be described with reference to FIG. The operator has a dialogue means 3
From 5, the periodic inspection execution schedule is input to the maintenance database means 41 through the periodic inspection plan setting means 37 for each power generation unit. When the execution start date in the periodic inspection schedule column of the maintenance database means 41, for example, January 1, 1999, the maintenance command means 7 sets the unit 1 in the operation instruction column to stop the maintenance (complete stop until draining) state. Is output to the operation command means 6, and the operable column is set to ×.
And outputs information to the load distribution means 8 that the unit 1 has deviated from the operable unit.

The operation command means 6 which has received the operation instruction information
Puts the unit 1 into a maintenance stop state, and receives the operable unit information,
Is excluded from the load distribution target units.

The maintenance stop means 7 is on April 1, 1999, which is the day after the completion of the periodic inspection. (If the periodic inspection is completed early, the operator sends the maintenance database 41 can be rewritten), the operable column of the unit 1 is returned to ○, and information indicating that the unit 1 has returned to the operable unit is output to the load distribution means 8, and the unit 1 is output. Have them return to the load distribution target unit. In addition, the operation instruction column is changed to “none”.

Next, the function of the operation test plan setting means 38 will be described with reference to FIG. The operator inputs the execution date and time of the operation test, the target device, and the operation contents to the maintenance database means 41 through the operation test plan setting means 38 from the interactive means 35. At that time, the maintenance command unit 7 inputs an operation state suitable for performing an operation test from the target device and the operation content in the test operation condition column of the maintenance database unit 41. For example, at 1:00 on January 1, 1999, the maintenance command means 7
Changes the operation instruction column of the unit 2 of the maintenance database means 41 to an operation test, and changes the operable column to x. When the operation instruction column indicates an operation test, the operation state in the test operation condition column is output to the operation instruction means 6 as operation instruction information. In this case, "none".

Next, information for causing the valve (A) of the unit 2 to open and close is output to the operation command means 6. The operation command means receiving the information executes the opening / closing operation of the valve (A). The operation judging means 42 inputs process information and video data when the valve (A) is opened / closed from the general monitoring means 5, and inputs the information and the judgment database means 4.
3 is compared with the normal process data information and the normal video data information to determine normal / abnormal. If it is determined that the valve (A) is abnormal, the operation abnormality information is output to the recovery plan setting means 40 to have the recovery plan set.

Next, the function of the equipment replacement plan setting means 39 will be described with reference to FIG. The device replacement instruction means 44
The process data information and video data information of each power generation unit 2 are fetched from the general monitoring means 5 and compared with the normal process data information and normal video data information of the replacement database means 45, and the performance, efficiency, and life are calculated. To calculate the time to replace the device, and to calculate the time and estimate required for the device replacement by the replacement database means 45.
From the previous equipment exchange information and exchange estimate information. The device replacement commanding means 44 outputs these information to the device replacement plan setting means 39 as device replacement command information.

The equipment replacement plan setting means 39 having received the equipment replacement instruction information inputs the replacement schedule and the target equipment to the maintenance database means 41. Further, the maintenance command unit 7 inputs an operation state suitable for replacement from the target device into the replacement operation condition column of the maintenance database unit 41.

[0092] The information communication means 48 is provided one month before the exchange schedule column of the maintenance database means 41, and the interactive means 35 is provided.
Is output to prompt the operator to recognize the replacement. For example, the information communication means 48 outputs, on January 1, 1999, information to the interactive means 35 that the replacement time of the pump (A) of the unit 2 is one month before.

The operator receiving the confirmation confirms the replacement schedule and, if there is no problem, keeps it as it is. If there is a problem in this schedule, the dialogue means 35 through the equipment replacement plan setting means 39 and the maintenance database means 41 The use / exclusion column can be excluded.

In the case of exclusion, the update from the device replacement command means 44 to the maintenance database means 41 can be stopped, so that the operator can arbitrarily input a schedule. On February 1, 1999, the maintenance command means 7
The operation status indication column of the unit 2 of the maintenance database means 41 is set to device replacement, and the operable column is changed to x. When the operation instruction column indicates that equipment is to be replaced, the operation state in the exchange operation condition column is output to the operation instruction means 6 as operation instruction information. In this case, "load drop" is output.

When the equipment replacement is completed on February 6, 1999, which is the next day of the equipment replacement completion date (when the equipment replacement is completed earlier, the operator stops using the maintenance database means 41 through the interactive means 35). / The exclusion column can be excluded and the replacement schedule can be rewritten), the operable column of the unit 2 is returned to ○, and information indicating that the unit 1 has returned to the operable unit is output to the load distribution means 8. 1 is returned to the load distribution target unit. In addition, the operation instruction column is changed to “none”.

Finally, the function of the recovery plan setting means 39 will be described with reference to FIG. Fault location specifying means 46
Fetches the abnormal state information of each power generation unit from the general monitoring means 5, finds out the fault location causing the error from the past failure case information / repair information and the restoration estimation information of the recovery database means 47, and recovers the fault location. The time and the estimate are output to the recovery plan setting means 40 as recovery information.

The recovery plan setting means 40 takes in the recovery information and the operation abnormality information described in the billing request 11 and inputs the recovery time and the target device to the maintenance database means 41. Also,
The maintenance command unit 7 inputs an operation state suitable for repair from the target device into the recovery operation condition column of the maintenance database unit 41.

Taking the pump (A) of the unit 2 as an example,
The information communication means 48 outputs information urging the recovery of the pump (A) to the interactive means 35 so that the operator can recognize the information. The operator who has received the information is sent from the dialogue means 35 to the recovery plan setting means 40.
, A recovery start date of February 1, 1999 is entered in the recovery start date column of the maintenance database means 41.

On February 1, 1999, the maintenance database means 41 sets the operation instruction column of the unit 2 under repair and changes the operable column to x. When the operation instruction column is under repair, the operation state in the restoration operation condition column is output to the operation instruction means 6 as operation instruction information. In this case, "single lung operation" is output.

When the operator after the completion of the recovery deletes the start date in the recovery start date column from the dialogue means 35 after the completion of the recovery, the operable column of the unit 2 is returned to ○, and the unit 2 is switched to the operable unit. Is output to the load distribution means 8 to have the unit 2 return to the load distribution target unit. In addition, the operation instruction column is changed to “none”.

[0101]

As described above, according to the present invention, these operation managements are performed centrally in units of a plurality of power plants or in units of a plurality of power generation units, thereby improving the efficiency of the total operation management. Improvements can be achieved, and the reduction of equipment and the number of operators can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a power generation operation management system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of an integrated monitoring means in the integrated operation management device.

FIG. 3 is a diagram showing a display example of an operation status of each power generation unit by a hierarchical structure information providing unit.

FIG. 4 is a diagram showing an example in which the operation status of each power generation unit is displayed so that the model of the power plant can be identified.

FIG. 5 is a diagram showing a display example of an abnormality occurrence state by a hierarchical structure information providing unit, an inquiry example of detailed information on abnormality occurrence by a detailed information inquiry unit, an automatic driving determination example, and an operation command example.

FIG. 6 is a diagram showing an example of load distribution adjustment at the time of a unit trip.

FIG. 7 is a diagram showing a modification of the power generation operation management system according to the first embodiment.

FIG. 8 is a diagram showing another modified example of the power generation operation management system according to the first embodiment.

FIG. 9 is a diagram showing a configuration of a power generation operation management system according to a second embodiment of the present invention.

FIG. 10 is a diagram showing an example of a monitor screen of the operation state of the common facility and the operation state of each power generation unit.

FIG. 11 is a diagram showing a configuration of a power generation operation management system according to a third embodiment of the present invention.

FIG. 12 is a diagram for explaining details of an input selection unit in FIG. 11;

FIG. 13 is a diagram illustrating a configuration of a power generation operation management system in which a selection unit is provided for each system in the third embodiment.

FIG. 14 is a diagram illustrating a configuration of a power generation operation management system in which a selection unit is provided for each device in the third embodiment.

FIG. 15 is a diagram showing a modified example in which a logic for automatically switching the selection state of the input selection means according to the plant operation status in the embodiment of FIG. 3 is provided.

FIG. 16 is a diagram showing a configuration of a power generation operation management system according to a fourth embodiment of the present invention.

FIG. 17 is a diagram showing load distribution means and other details in the general operation management device of FIG. 16;

FIG. 18 is a diagram showing a configuration of a power generation operation management system according to a fifth embodiment of the present invention.

FIG. 19 is a diagram showing a configuration of a power generation operation management system according to a sixth embodiment of the present invention.

FIG. 20 is a diagram showing a configuration of a power generation operation management system according to a seventh embodiment of the present invention.

FIG. 21 is a diagram showing a modification of the power generation operation management system according to the seventh embodiment.

FIG. 22 is a diagram illustrating a configuration of a power generation operation management system according to an eighth embodiment of the present invention.

FIG. 23 is a diagram illustrating details of an input selection unit of the embodiment in FIG. 22;

FIG. 24 is a diagram showing a configuration of a power generation operation management system according to a ninth embodiment of the present invention.

FIG. 25 is a view for explaining the function of the periodic inspection plan setting means of FIG. 24;

FIG. 26 is a view for explaining the function of the operation test plan setting means of FIG. 24;

FIG. 27 is a view for explaining the function of the device replacement plan setting means of FIG. 24;

FIG. 28 is a view for explaining the function of the recovery plan setting means of FIG. 24;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Power plant, 2 ... Power generation unit, 3 ... Unit monitoring control means, 4 ... Input / output processing part, 5 ... General monitoring means, 6 ... Operation command means, 7 ... Maintenance command means, 8 ... Load distribution means, 9 ...
Power generation planning means, 10: general operation management device, 11: central power supply command station, 12: unit monitoring means, 13: abnormality detection means, 14: hierarchical information providing means, 15: monitor, 16: detailed information inquiry means, 17 ... Automatic driving determination means, 18: determination database, 19: hierarchical structure information example, 20: detailed information example, 21: automatic operation determination example, 22: operation instruction example, 23
… Example of load distribution adjustment, 24… General management station of power plant, 35…
Dialogue means 36 maintenance plan setting means 37 periodic inspection plan setting means 38 operation test plan setting means 39 equipment replacement plan setting means 40 recovery plan setting means 41 maintenance database means 42 Operation determining means, 43 ... database means for determination, 44 ... equipment replacement instruction means, 45
... Replacement database means, 46 ... Fault location specifying means,
47 recovery database means, 48 power generation unit stop command transmission means, 49 communication means, 51 input selection means, 52 selection state communication section, 55 logic, 57 selection circuit section, 58 output command setting device , 59 ... Mode SW,
Reference numeral 60: operation characteristic database means, 61: output command distribution means, 62: output command reception means, 63: power generation unit operation state reception means, 64: power generation unit activation determination means, 6
5 ... power generation unit start command transmission means, 66 ... power generation output command transmission means, 68 ... power generation unit stop determination means, 69 ...
Output command distribution means, 70: selection state communication unit, 71: function of predicting load, 72: function of calculating load distribution, 73
... Output command distribution means.

 ──────────────────────────────────────────────────続 き Continued on the front page (31) Priority claim number Japanese Patent Application No. 10-96068 (32) Priority date Hei 10 (1998) April 8 (33) Priority claim country Japan (JP) (72) Inventor Takahisa Kato 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Shiro Otsuka 1-1-1, Shibaura, Minato-ku, Tokyo Inside the head office of Toshiba Corporation (72) Inventor Kazunori Omori Tokyo Fuchu, Tokyo 1 Toshiba-cho, Toshiba-shi Fuchu factory (72) Inventor Hiroyuki Inubushi 1-1-1, Shibaura, Minato-ku, Tokyo Inside Toshiba head office (72) Inventor Hiroshi Fukuda 1-1-1, Shibaura, Minato-ku, Tokyo No. 1 Toshiba Corporation Head Office (72) Inventor Toshihiko Tanaka 1-1-1 Shibaura Minato-ku Tokyo

Claims (13)

[Claims] 1. A plurality of unit monitoring and control means provided for each power generation unit of a plurality of power plants, and plant information respectively taken in from the unit monitoring and control means of the plurality of power generation units, and a state of each of the power generation units is determined. A general operation management device comprising: general monitoring means for monitoring, and operation command means for outputting an operation command for responding to the abnormality to each of the power generation units when an abnormality of the power generation unit is detected by the general monitoring means. And a power generation operation management system. 2. The power generation operation management system according to claim 1, wherein the general operation management device is fetched by a common facility operation state receiving unit that captures an operation state of a power station common facility, and by the common facility operation state reception unit. And a unit common monitoring means for monitoring the operating state of the power plant common equipment. 3. A distribution means for comprehensively managing each of the power generation units of the plurality of power plants, and distributing and instructing the plurality of power generation units to output commands for the plurality of power generation units collectively from the central power supply command center. A general operation management device having: a selection unit provided for each power generation unit, for switching whether or not to receive a command from the general operation management device; and a unit for communicating a state of the selection unit to the general operation management device. A power generation operation management system comprising: a unit control device. 4. The power generation operation management system according to claim 3, wherein the general operation management device further includes operation characteristic database means for storing operation characteristics for each output level of each of the power generation units; And calculating a load distribution among the power generation units based on the operation characteristics stored in the operation characteristic database means. 5. The power generation operation management system according to claim 3, wherein the general operation management device is configured such that an output command value for a power station batch provided from a central power supply command station is a maximum allowable power generation of the power generation unit being activated. A power generation operation management system, further comprising: means for outputting a start command to a stopped power generation unit when the total amount is larger than the total amount. 6. The power generation operation management system according to claim 3, wherein the general operation management device is configured such that an output command value for each of the power generation units distributed by the distribution unit is smaller than an allowable minimum power generation amount of the power generation unit. A power generation operation management system further comprising means for outputting a stop command to the power generation unit. 7. A distribution means for supervising and managing a power plant having a plurality of power generation units, and allocating and outputting to the plurality of power generation units an output command for a power plant collectively given from a central power supply command center. A power station general management device having, a selection means provided for each power generation unit, for selecting whether or not to receive a command from the power station general management device, and a state of the selection means to the power plant general management device. And a unit control device having a means for communicating. 8. A general operation management device that collectively manages a plurality of power plants each having a plurality of power generation units, and a power plant general management device that collectively manages the plurality of power generation units for each of the power plants. A plurality of unit control means for performing control for each of the power generation units, wherein the general operation management device distributes, to a plurality of power plants, output commands for a plurality of power plants collectively provided from a central power supply command station. The power plant general management device has a unit output distribution unit that distributes and instructs an output command from the power plant output distribution unit to a plurality of power generation units, The power generation operation management system, wherein the unit control means includes an output control means for controlling an output of the power generation unit based on an output command from the unit output distribution means. 9. The power generation operation management system according to claim 1, wherein the general operation management device includes: maintenance plan setting means for setting a maintenance plan for each power generation unit; and maintenance plan information set by the maintenance plan setting means. A power generation operation management system, comprising: storage means for storing the following information; and operation command means for outputting a maintenance operation command to the power generation unit based on the maintenance plan information stored in the storage means. 10. The power generation operation management system according to claim 1, wherein the general operation management device includes: inspection plan setting means for setting an inspection plan for each power generation unit; and inspection plan information set by the inspection plan setting means. A power generation operation management system, comprising: a storage unit for storing an operation command; and an operation instruction unit for outputting an operation instruction for inspection based on the inspection plan information stored in the storage unit. 11. The power generation operation management system according to claim 1, wherein the general operation management device includes: an operation test plan setting unit configured to set an operation test plan of a target device for each power generation unit; and the operation test plan setting unit. Storage means for storing operation test plan information set according to the following, operation command means for outputting an operation command for an operation test to the target device according to the operation test plan information stored in the storage means, and the operation test And an operation determining means for determining a result of the power generation operation. 12. The power generation operation management system according to claim 1, wherein the general operation management device calculates a device replacement time based on information indicating a plant state taken from each power generation unit, and replaces the device. Equipment replacement plan setting means for setting a plan; storage means for storing information of the equipment replacement plan set by the equipment replacement plan setting means; and replacement of the equipment in accordance with the equipment replacement plan information stored in the storage means. Means for outputting prompting information. 13. The power generation operation management system according to claim 1, wherein the general operation management device includes: a failure point identification unit that identifies a failure point of the power generation unit; and a restoration of the failure point identified by the failure point identification unit. Recovery plan setting means for setting a plan; storage means for storing information on the recovery plan set by the recovery plan setting means; and outputting a recovery operation command based on the recovery plan information stored in the storage means. A power generation operation management system, comprising: