CN106300436B - A kind of hydroelectric power plant's simultaneous interconnecting control method and device - Google Patents
A kind of hydroelectric power plant's simultaneous interconnecting control method and device Download PDFInfo
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- CN106300436B CN106300436B CN201610814175.5A CN201610814175A CN106300436B CN 106300436 B CN106300436 B CN 106300436B CN 201610814175 A CN201610814175 A CN 201610814175A CN 106300436 B CN106300436 B CN 106300436B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims description 17
- 238000002955 isolation Methods 0.000 claims description 17
- 230000001360 synchronised effect Effects 0.000 abstract description 15
- 238000002474 experimental method Methods 0.000 abstract description 13
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
- H02J3/42—Synchronising a generator for connection to a network or to another generator with automatic parallel connection when synchronisation is achieved
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Abstract
The invention discloses a kind of hydroelectric power plant's simultaneous interconnecting control methods, on the basis of using disconnecting switch state as simultaneous interconnecting operation judges condition, increase Rule of judgment of the false soft pressing plate state of contemporary trials as false simultaneous interconnecting experiment, the monitoring of normal simultaneous interconnecting and false simultaneous interconnecting experiment can not only be realized simultaneously, ensure the normal operations such as synchronous loop, synchronous device and unit, and the monitoring of influence and computer supervisory control system to disconnecting switch position to disconnecting switch position signal can be avoided；In addition, it is used as the Rule of judgment whether crew base load is set simultaneously by disconnecting switch state and the false soft pressing plate state of contemporary trials, it avoids to be not positioned in closing a floodgate in disconnecting switch and the situation of crew base load is set, eliminate because of unit safety hidden danger caused by maloperation and flow are slipped.
Description
Technical field
The invention belongs to intelligent power grid technology fields, are related to a kind of hydroelectric power plant's simultaneous interconnecting control method and device.
Background technology
With the development of electric system, network connection is more and more closer, and capacity is increasing.To power plant or substation
During the closing operation of middle breaker, need to operate by normal simultaneous interconnecting and realize, normal simultaneous interconnecting refer to synchronous point (every
Leave pass) systems (power grid and generator) of both sides has existed electrical link, it is further added by a circuit simply by operation
(synchronous loop for using automatic synchronizing paralleling mode, then further includes to carry out speed governing to generator, adjust in synchronous loop
The synchronous device of pressure), make that disconnecting switch both sides system voltage amplitude is equal, frequency is equal, phase difference of voltage zero, sequential one
Cause, voltage waveform are identical, and the end of synchronous loop is breaker.
The experiment of false simultaneous interconnecting is that a kind of method with simulation carries out false parallel operation, during experiment during disconnecting switch separating brake
Breaker closing makes the voltage of generator enter in synchronous loop, check synchronous device whether action message, it is grid-connected switch control
Whether circuit intact and whether the combined floodgate feedback time of grid-connected switch meets the requirements.
At present, hydroelectric power plant realizes the control of simultaneous interconnecting using computer supervisory control system, is controlled including normal simultaneous interconnecting
It is controlled with false simultaneous interconnecting.For normal simultaneous interconnecting, need detection and isolation switch that can just send out breaker conjunction after combined floodgate is
Lock order, while generating set (abbreviation unit) setting basic load (general active P will be given after breaker closingGFor 5MW, nothing
Work(QGFor 5MW).And close circuit breaker, usual power plant maintenance personnel meeting in disconnecting switch separating brake are needed for false simultaneous interconnecting
Think to force setting disconnecting switch switching signal (i.e. signal is forced to be set as 1) in computer supervisory control system database, so
Perform close circuit breaker order again afterwards, problems with can be brought by doing so：(1) due to being in computer supervisory control system database
Think to force setting disconnecting switch switching signal, changing for computer supervisory control system database other signals may be caused in this way
Become, so as to cause misprogramming；(2) since disconnecting switch signal has changed, the true position shape of disconnecting switch can not be monitored
State；(3) since disconnecting switch is not closed a floodgate, unit is that really and on power grid, it is negative that this results in monitoring system setting basis
Meeting Load adjustment after lotus, increases unit guide vane opening, but the load on unit can not increase always, and guide vane opening is caused constantly to increase
Unit is caused to overrun greatly.
Invention content
For current Supervisory Computer Control System For Hydroelectic Power Plant, existing monitoring property is poor in terms of simultaneous interconnecting control flow, accidentally grasps
Make the problems such as possibility is big, the purpose of the present invention is intended to provide a kind of hydroelectric power plant's simultaneous interconnecting control method, strengthens to keeping apart
The monitoring of open and-shut mode is closed, and avoids issuable maloperation.
Another object of the present invention is to provide a kind of hydroelectric power plant's simultaneous interconnecting control device.
Since simultaneous interconnecting includes two kinds of situations of normal simultaneous interconnecting and false simultaneous interconnecting experiment, normal simultaneous interconnecting is hair
Life is closed a floodgate in disconnecting switch after (being judged according to disconnecting switch switching signal), when false simultaneous interconnecting is tested, is kept apart
Pass is not closed a floodgate, in order to avoid in the prior art because by the mandatory a variety of skills for being set as switching signal and bringing of disconnecting switch signal
Art hidden danger can be introduced into another variable and sentence as judge whether to whether breaker in the experiment of false simultaneous interconnecting close a floodgate
Broken strip part；The present invention increases the judgement the item whether false soft pressing plate of contemporary trials closes a floodgate as breaker in false simultaneous interconnecting experiment
Part will not generate any influence to disconnecting switch signal in this way, not interfere with the normal monitoring to disconnecting switch naturally also.This hair
It is bright further by the adjustment to crew base charge setting procedure, avoid in false simultaneous interconnecting experiment process because computer is supervised
Control default crew base load and lead to unit to meet crew base load and non-normal working, lead to unit guide vane
Aperture constantly increase even causes unit to overrun, and influences unit service life.
The vacation soft pressing plate of contemporary trials refers to put into the one of power plant computer supervisory control system in simultaneous interconnecting operates
A variable, for as whether performing the judgement object of false simultaneous interconnecting operation；The false soft pressing plate input of contemporary trials refer to by
The variate-value that operations staff is set the soft pressing plate of false contemporary trials by monitoring system.
To reach first purpose of the invention, the present invention provides a kind of hydroelectric power plant's simultaneous interconnecting control method, including with
Lower step：
Step 101, simultaneous interconnecting operation requests are received；
Step 102, whether detection and isolation switch is placed in closing position, if being placed in closing position, 104 is entered step, if not having
It is placed in closing position and enters step 103；
Step 103, judge whether the soft pressing plate input of false contemporary trials is the first setting value, if the first setting value, into
Enter step 104, if not the first setting value, the failure of simultaneous interconnecting operation requests, flow terminate；
Step 104, according to simultaneous interconnecting operation requests, breaker closing order is performed, subsequently into step 105；
Step 105, judge whether breaker is placed in closing position, if being placed in closing position enters step 106, if not putting
In closing position, the failure of simultaneous interconnecting operation requests, flow terminates；
Step 106, whether detection and isolation switch is placed in closing position, if being placed in closing position enters step 107, if not having
Closing position is placed in, then crew base load is set for 0MW, then completes simultaneous interconnecting operation, flow terminates；
Step 107, judge whether the soft pressing plate input of false contemporary trials is the second setting value, if the second setting value, if
Crew base load is put as operating power, then completes simultaneous interconnecting operation, flow terminates；If not the second setting value, setting
Crew base load is 0MW, then completes simultaneous interconnecting operation, and flow terminates.
Above-mentioned hydroelectric power plant's simultaneous interconnecting control method, the simultaneous interconnecting operation requests include the operation of normal simultaneous interconnecting please
The false simultaneous interconnecting operation requests of summation, by hydroelectric power plant's simultaneous interconnecting control method, can both realize to normal simultaneous interconnecting
The control of operation can also realize the control operated to false simultaneous interconnecting；When disconnecting switch is placed in closing position, acquiescence performs
Be the operation of normal simultaneous interconnecting, then perform breaker closing order；When disconnecting switch is not positioned in closing position, need
Further judge whether to perform according to the soft pressing plate input of false contemporary trials is false simultaneous interconnecting test operation, if the examination of the false same period
When testing soft pressing plate input as the first setting value, give tacit consent to execution is false simultaneous interconnecting operation, then performs breaker closing life
It enables；If the false soft pressing plate input of contemporary trials is not the first setting value, simultaneous interconnecting operation requests failure, flow terminates, needs
It checks synchronous loop, synchronous device or resets the soft pressing plate input of false contemporary trials.
Above-mentioned hydroelectric power plant's simultaneous interconnecting control method, first setting value are to judge whether false simultaneous interconnecting operation holds
The value gone and set, compared with the soft pressing plate input of false contemporary trials, whether comparison result is used as performs false simultaneous interconnecting
The Rule of judgment of operation；Second setting value is the value set to determine how setting crew base load, same with vacation
Phase tests soft pressing plate input and compares, and comparison result is as the Rule of judgment for how setting crew base load；Described first
Setting value and the second setting value are unequal.
Above-mentioned hydroelectric power plant's simultaneous interconnecting control method after open circuit combined floodgate order has been performed, is needed to crew base load
It is configured, before being configured to crew base load, first disconnecting switch state and the false soft pressing plate of contemporary trials is put into
Value carries out dual judgement, and it just can be to prevent generator unit by crew base load setting that only the two condition, which is all met the requirements,
The operating power (including active power and reactive power) of inverse probability operation (absorbing active power from power grid), as long as wherein one
A condition is unsatisfactory for requiring, and is just 0MW by crew base load setting, ensures that unit is in off working state.
To reach second object of the present invention, the present invention provides a kind of hydroelectric power plant's simultaneous interconnecting control device, including
Receiving module, for receiving simultaneous interconnecting operation requests；
Whether the first judgment module is placed in closing position for detection and isolation switch, if being placed in closing position, starts and perform
Module, if being not positioned in closing position starts the second judgment module；
Second judgment module, for judging whether the soft pressing plate input of false contemporary trials is the first setting value, if first
Setting value starts execution module, if not the first setting value, the failure of simultaneous interconnecting operation requests, flow terminate；
Execution module, according to simultaneous interconnecting operation requests, performs breaker closing order, then starts third and judges mould
Block；
Third judgment module for judging whether breaker is placed in closing position, if being placed in closing position, starts the 4th and sentences
Disconnected module, if being not positioned in closing position, simultaneous interconnecting operation requests failure, flow terminates；
Whether the 4th judgment module is placed in closing position for detection and isolation switch, if being placed in closing position, starts the 5th
Judgment module if being not positioned in closing position, sets crew base load as 0MW, then completes simultaneous interconnecting operation, flow
Terminate；
5th judgment module, for judging whether the soft pressing plate input of false contemporary trials is the second setting value, if second
Setting value, setting crew base load are operating power, then complete simultaneous interconnecting operation, and flow terminates；If not second sets
Definite value, setting crew base load are 0MW, then complete simultaneous interconnecting operation, and flow terminates.
Compared with prior art, the invention has the advantages that：
1st, due to simultaneous interconnecting control method in hydroelectric power plant's of the present invention, normal simultaneous interconnecting and the false same period be can be achieved at the same time simultaneously
The monitoring of experiment is netted, ensures the normal operations such as synchronous loop, synchronous device and unit；
2nd, due to simultaneous interconnecting control method in hydroelectric power plant's of the present invention, judged whether by the soft pressing plate input of false contemporary trials
Breaker closing order is performed, avoids influence to disconnecting switch position signal and computer supervisory control system to keeping apart off-position
The monitoring put；
3rd, due to simultaneous interconnecting control method in hydroelectric power plant's of the present invention, pass through disconnecting switch state and the soft pressing plate of false contemporary trials
State as whether the Rule of judgment of crew base load is set, avoids simultaneously and is not positioned in combined floodgate in disconnecting switch
The situation of crew base load is set, is eliminated because of unit safety hidden danger caused by maloperation and flow are slipped.
Description of the drawings
Fig. 1 is this grid-connected schematic diagram of hydroelectric power plant's hydrogenerator.
Fig. 2 is simultaneous interconnecting control method flow chart in hydroelectric power plant's of the present invention.
Wherein, 1- generators G, 2- disconnecting switch QS, 3- circuit breaker Q F, 4- network system.
Specific embodiment
Clear, complete description is carried out to the technical solution of various embodiments of the present invention below with reference to attached drawing, it is clear that retouched
The part of the embodiment that embodiment is only the present invention is stated, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill obtained all other embodiment under the premise of creative work is not made, belongs to this hair
Bright protected range.
The grid-connected simultaneous interconnecting operations to network system 4 of generator G 1 are divided into normal simultaneous interconnecting operation and the false same period simultaneously
Net operation.Fig. 1 is the grid-connected schematic diagram of hydroelectric power plant's hydrogenerator, as shown in the figure, when normal simultaneous interconnecting operates, generator G
1 outlet side disconnecting switch QS 2 needs in-place closing, is then controlled by computer supervisory control system and 1 outlet sides of generator G break
Device QF 3 in-place closings in road complete the normal grid-connected of generator G 1；When carrying out false simultaneous interconnecting experiment, generator G 1 is exported
Side disconnecting switch QS 2 needs, in open position, then to control the open circuit of 1 outlet sides of generator G by computer supervisory control system
3 in-place closings of device QF complete the false simultaneous interconnecting experiment of generator G 1.
Based on 1 grid-connected operation principles of generator G, a kind of hydroelectric power plant's simultaneous interconnecting control method is present embodiments provided, such as
Shown in Fig. 2, include the following steps：
Step 101, simultaneous interconnecting operation requests are received；Simultaneous interconnecting operation requests for normal simultaneous interconnecting operation requests or
Person's vacation simultaneous interconnecting operation requests.
Step 102, whether detection and isolation switch is placed in closing position, if being placed in closing position, 104 is entered step, if not having
It is placed in closing position and enters step 103；Can whether closing position be placed in come detection and isolation switch by disconnecting switch signal,
For example, set disconnecting switch switching signal as " 1 ", disconnecting switch opening signal be " 0 "；When disconnecting switch signal is " 1 ", say
Bright disconnecting switch is in "on" position, and what acquiescence performed at this time is normal simultaneous interconnecting operation, just may be used after needing breaker closing
To complete normal simultaneous interconnecting, generator enters working condition；When disconnecting switch signal is " 0 ", illustrate that disconnecting switch is in
Opening state cannot need to enter step 103 in conjunction with the examination of the false same period to whether being that false contemporary trials operation judges at this time
Soft pressing plate input is tested to be judged.
Step 103, judge whether the soft pressing plate input of false contemporary trials is the first setting value, if the first setting value, into
Enter step 104, if not the first setting value, the failure of simultaneous interconnecting operation requests, flow terminate；First setting value is false to judge
The value whether simultaneous interconnecting operation performs and set, compared with the soft pressing plate input of false contemporary trials, comparison result conduct
Whether the Rule of judgment of false simultaneous interconnecting operation is performed；Second setting value is set to determine how setting crew base load
Value, compared with the soft pressing plate input of false contemporary trials, comparison result is as the judgement for how setting crew base load
Condition；First setting value and the second setting value are unequal；Operations staff oneself can set, and the first setting value is in the present embodiment
" 1 ", the second setting value are " 0 "；If disconnecting switch is in an open state, power station operations staff is needed through operation panel in computer
The soft pressing plate variate-value of the false contemporary trials of monitoring system input (namely by operation panel, link associated databases, the false same period is tried
Soft pressing plate input variable is tested to be configured), computer supervisory control system needs to judge the soft pressing plate input of above-mentioned false contemporary trials at this time
Value is compared with " 1 ", if the soft pressing plate input of false contemporary trials is " 1 ", acquiescence performs false simultaneous interconnecting test operation, needs to break
Road device can just complete false simultaneous interconnecting experiment after closing a floodgate；If the soft pressing plate input of false contemporary trials is not " 1 ", simultaneous interconnecting behaviour
Make request failure, flow terminates, and needs to check synchronous loop, synchronous device or resets the soft pressing plate input of false contemporary trials
It is worth for " 1 ".
Step 104, according to simultaneous interconnecting operation requests, breaker closing order is performed, subsequently into step 105；It performs
After complete breaker closing order, it is also necessary to which generator crew base load is set.
Step 105, judge whether breaker is placed in closing position, if being placed in closing position enters step 106, if not putting
In closing position, the failure of simultaneous interconnecting operation requests, flow terminates；Before generator crew base load is set, elder generation is needed
Setting condition is judged, then determining, how crew base load is set according to Rule of judgment；It is disconnected firstly the need of judging
Whether road device is placed in closing position namely judges whether breaker closing order execution succeeds；Can by breaker signal come
Whether detection and isolation switch is placed in closing position, for example, setting breaker closing signal and being as " 1 ", breaker opening signal
“0”；When breaker signal is " 1 ", illustrate that breaker is in "on" position, also needing at this time will be to disconnecting switch state and vacation
The soft pressing plate input of contemporary trials is judged；When breaker signal is " 0 ", illustrate that breaker is in opening state, open circuit
Device, which closes a floodgate, orders execution unsuccessful, illustrates that breaker circuit is problematic, needs to exit simultaneous interconnecting operating process, investigate out open circuit
Breaker closing order is re-executed after device obstacle again.
Step 106, whether detection and isolation switch is placed in closing position, if being placed in closing position enters step 107, if not having
Closing position is placed in, then crew base load is set for 0MW, then completes simultaneous interconnecting operation, flow terminates；It can be before
It states disconnecting switch signal and carrys out detection and isolation switch in "on" position or opening state, if disconnecting switch signal is " 1 ", explanation
Disconnecting switch in order to ensure there is not maloperation, while is also needed to further combined with the soft pressing plate of false contemporary trials in "on" position
Input is judged；If disconnecting switch signal is " 0 ", illustrate that disconnecting switch in opening state, is needed at this time by crew base
Charge is set as 0MW, avoids leading to unit due to computer supervisory control system sets crew base load to meet crew base
Load and non-normal working cause the constantly increase of unit guide vane opening even unit to be caused to overrun.
Step 107, judge whether the soft pressing plate input of false contemporary trials is the second setting value, if the second setting value, if
Crew base load is put as operating power, then completes simultaneous interconnecting operation, flow terminates；If not the second setting value, setting
Crew base load is 0MW, then completes simultaneous interconnecting operation, and flow terminates；As previously mentioned, the present embodiment vacation contemporary trials are soft
The second setting value of pressing plate is " 0 ", when disconnecting switch is in closing position, power station operations staff is needed to be counted by operation panel
The soft pressing plate variate-value of the false contemporary trials of machine monitoring system input is calculated, computer supervisory control system needs to judge above-mentioned false same period examination at this time
Soft pressing plate input is tested compared with " 0 ", if the soft pressing plate input of false contemporary trials is " 0 ", setting crew base load is work
The rate of doing work, operating power can be set according to generator unit and power grid concrete condition, general to set crew base charge
For 5MW (i.e. active-power PsG+For 5MW, reactive power QGFor 5MW)；It, will if the soft pressing plate input of false contemporary trials is not " 0 "
Crew base charge is set as 0MW, avoids leading to unit due to computer supervisory control system sets crew base load to meet
Crew base load and non-normal working cause the constantly increase of unit guide vane opening even unit to be caused to overrun.
Above-mentioned hydroelectric power plant's simultaneous interconnecting control method provided in this embodiment can realize the normal simultaneous interconnecting to generator
Operation and the Row control of false simultaneous interconnecting test operation are used as Rule of judgment by the state for increasing the soft pressing plate of false contemporary trials
To avoid false simultaneous interconnecting experiment is existing in the process from needing power plant maintenance personnel artificially forced quarantine switch conjunction in the database
Gate position signal and the problem of can not monitor disconnecting switch actual position state and after breaker closing because of setting unit base
Unit caused by plinth load is wrong is overrun problem, so as to eliminate because of unit safety hidden danger caused by maloperation and flow loophole.
The present embodiment is the same period after " 1 " in "on" position or the soft pressing plate of false contemporary trials in detection and isolation switch
Device needs the data such as voltage, the frequency of generator and power grid are obtained about according to computer supervisory control system, to generator into
Row speed governing, pressure regulation to generator voltage and frequency multiplexed grid-connected conditions, then by breaker closing, the reality in relation to this partial content
Existing mode is the ordinary skill in the art, if power station does not have automatic paralleling device, can by artificial regulator generator voltage and
Rotating speed is realized.
The present embodiment is based on above-mentioned hydroelectric power plant's simultaneous interconnecting control method, further a kind of hydroelectric power plant's simultaneous interconnecting control dress
It puts, for each step of the above method, the module of above-mentioned function is realized in design one, which includes：
Receiving module, for receiving simultaneous interconnecting operation requests；
Whether the first judgment module is placed in closing position for detection and isolation switch, if being placed in closing position, starts and perform
Module, if being not positioned in closing position starts the second judgment module；
Second judgment module, for judging whether the soft pressing plate input of false contemporary trials is the first setting value, if first
Setting value starts execution module, if not the first setting value, the failure of simultaneous interconnecting operation requests, flow terminate；
Execution module, according to simultaneous interconnecting operation requests, performs breaker closing order, then starts third and judges mould
Block；
Third judgment module for judging whether breaker is placed in closing position, if being placed in closing position, starts the 4th and sentences
Disconnected module, if being not positioned in closing position, simultaneous interconnecting operation requests failure, flow terminates；
Whether the 4th judgment module is placed in closing position for detection and isolation switch, if being placed in closing position, starts the 5th
Judgment module if being not positioned in closing position, sets crew base load as 0MW, then completes simultaneous interconnecting operation, flow
Terminate；
5th judgment module, for judging whether the soft pressing plate input of false contemporary trials is the second setting value, if second
Setting value, setting crew base load are operating power, then complete simultaneous interconnecting operation, and flow terminates；If not second sets
Definite value, setting crew base load are 0MW, then complete simultaneous interconnecting operation, and flow terminates.
Those of ordinary skill in the art will understand that embodiment here, which is to help reader, understands the present invention's
Principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field it is common
Technical staff can make the various other various tools for not departing from essence of the invention according to these technical inspirations disclosed by the invention
Body deforms and combination, these deformations and combination are still within the scope of the present invention.
Claims (6)
1. a kind of hydroelectric power plant's simultaneous interconnecting control method, it is characterised in that：Include the following steps：
Step 101, simultaneous interconnecting operation requests are received；
Step 102, whether detection and isolation switch is placed in closing position, if being placed in closing position, 104 is entered step, if not putting
103 are entered step in closing position；
Step 103, judge whether the soft pressing plate input of false contemporary trials is the first setting value, if the first setting value, into step
Rapid 104, if not the first setting value, the failure of simultaneous interconnecting operation requests, flow terminate；
Step 104, according to simultaneous interconnecting operation requests, breaker closing order is performed, subsequently into step 105；
Step 105, judge whether breaker is placed in closing position, if being placed in closing position enters step 106, if being not positioned in closing
Gate position, the failure of simultaneous interconnecting operation requests, flow terminate；
Step 106, whether detection and isolation switch is placed in closing position, if being placed in closing position enters step 107, if being not positioned in
Closing position, then set crew base load as 0MW, then completes simultaneous interconnecting operation, and flow terminates；
Step 107, judge whether the soft pressing plate input of false contemporary trials is the second setting value, if the second setting value, machine is set
Group basic load is operating power, then completes simultaneous interconnecting operation, and flow terminates；If not the second setting value, sets unit
Basic load is 0MW, then completes simultaneous interconnecting operation, and flow terminates；
The false soft pressing plate of contemporary trials refers to put into a variable of power plant computer supervisory control system in simultaneous interconnecting operates, and uses
In as whether performing the operation of false simultaneous interconnecting or how to set the judgement object of crew base load；The false soft pressure of contemporary trials
Plate input refers to the change set by operations staff by power plant computer supervisory control system to the soft pressing plate of false contemporary trials
Magnitude.
2. simultaneous interconnecting control method in hydroelectric power plant's according to claim 1, it is characterised in that：The simultaneous interconnecting operation please
It asks including normal simultaneous interconnecting operation requests and false simultaneous interconnecting operation requests.
3. simultaneous interconnecting control method in hydroelectric power plant's according to claim 1 or 2, it is characterised in that：First setting value
Be to judge whether false simultaneous interconnecting operation performs the value set, compared with the soft pressing plate input of false contemporary trials, than
Whether relatively result is as performing the Rule of judgment of false simultaneous interconnecting operation；Second setting value is to determine how setting unit
Basic load and the value set, compared with the soft pressing plate input of false contemporary trials, how comparison result is as setting unit
The Rule of judgment of basic load；First setting value and the second setting value are unequal.
4. a kind of hydroelectric power plant's simultaneous interconnecting control device, it is characterised in that：Including
Receiving module, for receiving simultaneous interconnecting operation requests；
Whether the first judgment module is placed in closing position for detection and isolation switch, if being placed in closing position, starts and perform mould
Block, if being not positioned in closing position starts the second judgment module；
Second judgment module, for judging whether the soft pressing plate input of false contemporary trials is the first setting value, if the first setting
Value starts execution module, if not the first setting value, the failure of simultaneous interconnecting operation requests, flow terminate；
Execution module according to simultaneous interconnecting operation requests, performs breaker closing order, then starts third judgment module；
Third judgment module for judging whether breaker is placed in closing position, if being placed in closing position, starts the 4th and judges mould
Block, if being not positioned in closing position, simultaneous interconnecting operation requests failure, flow terminates；
Whether the 4th judgment module is placed in closing position for detection and isolation switch, if being placed in closing position, starts the 5th and judges
Module if being not positioned in closing position, sets crew base load as 0MW, then completes simultaneous interconnecting operation, flow knot
Beam；
5th judgment module, for judging whether the soft pressing plate input of false contemporary trials is the second setting value, if the second setting
Value, setting crew base load are operating power, then complete simultaneous interconnecting operation, and flow terminates；If not the second setting value,
It is 0MW to set crew base load, then completes simultaneous interconnecting operation, and flow terminates；
The vacation soft pressing plate of contemporary trials refers to a change of the input power plant computer supervisory control system in simultaneous interconnecting operates
Amount, for as whether performing the operation of false simultaneous interconnecting or how to set the judgement object of crew base load；False same period examination
Soft pressing plate input is tested to refer to set the soft pressing plate of false contemporary trials by power plant computer supervisory control system by operations staff
The variate-value arrived.
5. simultaneous interconnecting control device in hydroelectric power plant's according to claim 4, it is characterised in that：The simultaneous interconnecting operation please
It asks including normal simultaneous interconnecting operation requests and false simultaneous interconnecting operation requests.
6. simultaneous interconnecting control device in hydroelectric power plant's according to claim 4 or 5, it is characterised in that：First setting value
Be to judge whether false simultaneous interconnecting operation performs the value set, compared with the soft pressing plate input of false contemporary trials, than
Whether relatively result is as performing the Rule of judgment of false simultaneous interconnecting operation；Second setting value is to determine how setting unit
Basic load and the value set, compared with the soft pressing plate input of false contemporary trials, how comparison result is as setting unit
The Rule of judgment of basic load；First setting value and the second setting value are unequal.
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|---|---|---|---|---|
| CN107134809B (en) * | 2017-05-19 | 2023-06-02 | 山东中实易通集团有限公司 | Automatic synchronization grid-connection system and grid-connection method for power plant |
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