CN111478818A - A remote check method based on SCD file and RCD file - Google Patents

Abstract

The invention relates to a remote check method based on SCD files and RCD files, and its main technical features are as follows: acquiring substation information; importing substation design point tables, SCD files and RCD files, and dynamically analyzing the configuration information of each IED intelligent device; configuring Substation network parameters; build virtual IED smart devices, obtain telecontrol signal forwarding relationship information, virtual IED smart devices send action and reset signals, and check whether the signals received by the virtual master station are consistent with the virtual IED smart devices. Check report, visual display of check pass signal and fail signal result. The present invention has reasonable design, can centrally find and eliminate faults including telecontrol configuration, equipment configuration and connection, and the correspondence between point meter signals and point numbers in the acceptance process, can greatly shorten the substation commissioning cycle, and improve the acceptance of substation telecontrol information. Improve the efficiency and automation level, shorten the substation commissioning and acceptance cycle.

Description

A remote check method based on SCD file and RCD file

technical field

The invention belongs to the technical field of substations, in particular to a remote check method based on SCD files and RCD files.

Background technique

Before the substation is officially put into use, the substation system needs to be checked and accepted. In the existing substation acceptance scheme, the station cannot monitor the 104 message sent when the master station is dispatched for acceptance. When the fault signal disappears, the fault can not be located at the master station or the substation, resulting in the disappearance of the fault. Time-consuming problem.

Since the correct triggering of the monitoring signal requires the cooperation of the merging unit, the measurement and control equipment, the remote engine, the encryption machine, the front-end machine, and the monitoring system, it can be transmitted to the on-duty personnel. Therefore, any problems in any link will lead to signal failure. Diagnosing sending or simulating commands, unable to troubleshoot packet problems, and inability to compare and diagnose multiple hardware interface channels. On-site acceptance will also be interrupted due to graphics, model, and parameter errors. When the acceptance encounters error signals and needs to be eliminated, there is no reliable means to find faults. Therefore, it often happens that multiple manufacturers blame each other, resulting in slow acceptance progress.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a telecontrol check method based on SCD files and RCD files. Find equipment wiring errors and eliminate factors that cause substation acceptance stagnation or acceptance period to be too long, and improve the efficiency of substation commissioning and acceptance.

The present invention solves its technical problem by adopting the following technical solutions to realize:

A remote check method based on SCD files and RCD files, comprising the following steps:

Step 1. Obtain the following substation information: substation design point table, SCD file, RCD file, master station network configuration information and telecontrol network configuration information;

Step 2. Import the substation design point table, SCD file and RCD file, and dynamically analyze the configuration information of each IED intelligent device;

Step 3. Configure the following substation network parameters: network IP, mask, gateway, protocol type;

Step 4, constructing a virtual IED intelligent device, obtaining the telecontrol signal forwarding relationship information, the virtual IED intelligent device sending an action and a reset signal, and checking whether the signal received by the virtual master station is consistent with the state of the signal sent by the virtual IED intelligent device;

Step 5. After the verification is completed, a verification report is automatically generated, and the results of the verification pass and fail signals are visually displayed.

The specific implementation method of the step 2 is: import the substation design point table, the SCD file and the RCD file through the import file module, generate the corresponding signal list to be checked, generate the corresponding virtual IED intelligent equipment and the corresponding configuration information inside the equipment, according to The configured port and network information generates a virtual master.

The signal list to be checked includes point number, signal name and alarm level information.

In the step 2, during the import process, format verification is performed on the imported SCD file and RCD file, and an error message is given if the imported file format is inconsistent with the standard specification format.

The specific implementation method of the step 4 includes the following steps:

⑴Analyze the access points, logical devices, logical nodes, data objects, data attributes and interconnection information in the SCD file to build a virtual IED intelligent device; build a virtual master model by analyzing the master network information and protocol type information;

(2) Parse the RCD file, and obtain the telecontrol signal forwarding relationship information by one-to-one correspondence between the des field corresponding to the signal description and the IEC61850 pathname reference field corresponding to the telecontrol host;

(3) The virtual IED intelligent device sequentially sends the action-return signal of the corresponding device through a fixed interval and sends it to the remote control host. The remote control host receives the corresponding signal and uploads the signal to the virtual master station through the forwarding relationship table and checks and receives it at the same time. Whether the received signal is in one-to-one correspondence with the action sent by the virtual IED smart device and the state of the reset signal; record the time when the virtual IED smart device sends the action and the reset signal and the action and reset time received by the virtual master station;

⑷ If the signal, point number and corresponding signal state received by the virtual master station are completely consistent with the signal sent by the virtual IED smart device, the signal passes the check; if the signal state received by the virtual master station is inconsistent or fails to receive When the signal arrives, the station maintenance personnel intervene to check whether the remote control configuration and remote control wiring diagram are correct, and at the same time check whether the point number of the signal in the design point table corresponds to the actual equipment signal point number, and check the station equipment configuration and equipment at the same time. Is the internal wiring correct?

Described virtual IED intelligent equipment includes secondary equipment table, IED instance configuration, communication configuration information, GOOSE/SV configuration and IED virtual terminal connection relation; Described virtual master station model includes master station IP, master station and telecontrol communication port and Data transfer protocol type.

In the step 4, the check signal includes types including ordinary remote signal, communication interruption remote signal and telemetry signal, and the check content includes remote signal action signal, remote signal return signal, telemetry sent value and telemetry received value.

In the step 4, the telemetry value sent by the virtual IED device to the virtual master station needs to be verified by reverse calculation to verify whether the telemetry value sent by the virtual IED smart device is correct and checked.

In the step 4, the action signal of the virtual IED smart device and the action signal received by the virtual master station are marked by red squares, and the reset action sent by the virtual IED smart device and the reset signal received by the virtual master station are marked by green squares, Signals that pass the check are marked with a "√" symbol, and signals that do not pass the check are marked with a "×" symbol.

In the step 5, the signals that pass the check and the signals that fail the check are automatically displayed in groups, and the number of the signals that pass the check and the number of the signals that fail the check are given.

The advantages and positive effects of the present invention are:

1. The present invention checks the correctness of the telecontrol configuration by reconstructing the virtual IED intelligent equipment of the whole station, sending the action and return signals in turn, and checking the correctness of the telecontrol configuration through the telecontrol forwarding signal received by the virtual master station, and can quickly locate the remote control configuration. It can also quickly locate the problem of incorrect matching of signals and point numbers in the design point table, eliminate the failure of signal acceptance caused by the telecontrol itself in advance, and greatly shorten the substation commissioning cycle. Improve the efficiency and automation level of substation telecontrol information acceptance, reduce the number of equipment operations by substation maintenance personnel, and shorten the substation commissioning and acceptance cycle.

2. The present invention can centrally find and eliminate faults including telecontrol configuration, equipment configuration and connection, and the correspondence between point meter signals and point numbers during the acceptance process, thereby improving the acceptance work efficiency.

3. The present invention can ensure the link connectivity of the signal transmission from the station terminal to the dispatch master station in advance, so as to avoid the failure of the dispatch master station to receive the station terminal signal normally, and the acceptance interruption occurs, resulting in the lag of the acceptance progress.

Description of drawings

FIG. 1 is a process flow chart of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

The present invention is realized based on the following processing modules:

Parameter configuration module: configure the substation, telecontrol network and protocol and other related information, simulate the actual master station to receive the signal sent by the telecontrol.

Import file module: import substation design point table, SCD (substation configuration description) file and RCD (remote control configuration description) file, and dynamically parse the information such as instance configuration, communication configuration, virtual terminal connection and telecontrol forwarding relationship of IED equipment in the file , reconstruct the virtual IED intelligent device of the whole station.

Telecontrol test module: The virtual IED intelligent device sends intermittent action and reset signals, and checks the corresponding relationship between the internal signals of the telecontrol host and whether the signal and the point number are consistent by checking the signals received by the virtual master station.

Calibration report module: Automatically record the actions and reset states sent by the virtual IED smart device, as well as the time of signal transmission and reception, and automatically generate a telecontrol calibration report.

Based on the above-mentioned processing module, the present invention proposes a remote check method based on SCD files and RCD files, as shown in Figure 1, comprising the following steps:

Step 1. Obtain substation information, including substation design point table, SCD file, RCD file, master station network configuration, telecontrol network configuration and other information.

Step 2. Import the substation design point table, SCD file and RCD file, and dynamically analyze the configuration information of each IED intelligent device.

The specific implementation method of this step is: import the substation design point table, the substation configuration SCD file and the telecontrol configuration RCD file through the import file module, and generate a corresponding list of signals to be checked, including information such as point number, signal name, alarm level, etc. Generate the corresponding virtual IED smart device and the corresponding configuration information inside the device, and generate the virtual master station according to the configured port and network information.

This step realizes the function of performing format verification on the imported SCD file and RCD file. If the format of the imported file is inconsistent with the standard specification format, an error message is given.

Step 3. Configure network parameters, including parameters such as network IP, mask, gateway, and protocol type.

In this step, the relevant information such as the substation, the telecontrol network and the protocol is configured through the parameter configuration module, and the actual master station is simulated to receive the signal sent by the telecontrol.

Step 4: Build a virtual IED smart device, obtain telecontrol signal forwarding relationship information, send action and reset signals from the virtual IED smart device, and check whether the signal received by the virtual master station is consistent with the state of the signal sent by the virtual IED smart device.

This step is realized by the telecontrol test module, and the specific method includes the following steps:

(1) By parsing the access point, logical device, logical node, data object, data attribute, interconnection and other information in the SCD file, construct a virtual IED intelligent device, including secondary device table, IED instance configuration, communication configuration information, GOOSE /SV configuration, IED virtual terminal connection relationship, etc.; by analyzing the master network information, protocol type and other information, build a virtual master model, including the master IP, the communication port between the master and the remote control, the data transmission protocol type, etc.;

(2) Parse the RCD file, and obtain the telecontrol signal forwarding relationship information by one-to-one correspondence between the des field corresponding to the signal description and the IEC61850 pathname reference field corresponding to the telecontrol host;

(3) The virtual IED intelligent device sequentially sends the action-return signal of the corresponding device at a fixed interval (which can be manually configured) and sends it to the telecontrol host. The telecontrol host receives the corresponding signal and uploads the signal to the virtual machine through the forwarding relationship table. At the same time, the master station checks whether the received signal corresponds to the status of the action and the reset signal sent by the virtual IED smart device; at the same time, it records the time of the virtual IED smart device sending the action and the reset signal, and the action and reset signal received by the virtual master station. time;

(4) If the signal, point number and corresponding signal state received by the virtual master station are exactly the same as the signal sent by the virtual IED smart device, that is, the signal states are as follows: the virtual IED smart device sends an action signal - the virtual master station receives the corresponding signal Action signal - The virtual IED intelligent device sends a reset signal - the virtual master station receives the corresponding reset signal, and the signal passes the check; if the signal status received by the virtual master station is inconsistent or fails to receive the signal, the station maintenance personnel Intervene to check whether the remote control configuration and remote control wiring diagram are correct, at the same time check whether the point numbers of the signals in the design point table correspond to the actual equipment signal point numbers one-to-one, and check whether the configuration of the station equipment and the internal connection of the equipment are correct;

In this step, the check signal includes types including ordinary remote signal, communication interruption remote signal and telemetry signal, and check content includes remote signal action signal, remote signal reset signal, telemetry sent value and telemetry received value.

In this step, the acceptance rule of the telemetry signal needs to meet the requirements of point number plus deviation and multiplied by the specified coefficient. Therefore, the telemetry value sent by the virtual IED device to the virtual master station needs to be verified by reverse calculation. The telemetry value sent by the virtual IED smart device correct and check.

In this step, the action signal of the virtual IED smart device and the action signal received by the virtual master station are marked by red squares, the reset action sent by the virtual IED smart device and the reset signal received by the virtual master station are marked by green squares, and are marked by green squares. The checked signals are marked with "√", and the unchecked signals are marked with "×".

Step 5. After the verification is completed, a verification report is automatically generated, and the results of the verification pass and fail signals are visually displayed.

In this step, the calibration report module automatically records the action and reset status sent by the virtual IED smart device, as well as the time of signal transmission and reception, etc., and automatically generates a telecontrol calibration report, which will pass the calibration signal and fail the calibration. The signals are displayed in groups, giving the number of signals that passed the check and the number of signals that failed.

Through the automatically generated telecontrol check report, you can visually check the number of failed check signals and the specific point number signals, and find out the reason for the signal failing check by locating the configuration of the corresponding signal in the remote machine and the connection diagram.

It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, so the present invention is not limited to the embodiments described in the specific implementation manner. The other embodiments obtained also belong to the protection scope of the present invention.

Claims (10)

1. a tele-checking method based on SCD file and RCD file, is characterized in that comprising the following steps: Step 1. Obtain the following substation information: substation design point table, SCD file, RCD file, master station network configuration information and telecontrol network configuration information; Step 2. Import the substation design point table, SCD file and RCD file, and dynamically analyze the configuration information of each IED intelligent device; Step 3. Configure the following substation network parameters: network IP, mask, gateway, protocol type; Step 4, constructing a virtual IED intelligent device, obtaining the telecontrol signal forwarding relationship information, the virtual IED intelligent device sending an action and a reset signal, and checking whether the signal received by the virtual master station is consistent with the state of the signal sent by the virtual IED intelligent device; Step 5. After the verification is completed, a verification report is automatically generated, and the results of the verification pass and fail signals are visually displayed. 2. a kind of telecontrol checking method based on SCD file and RCD file according to claim 1, is characterized in that: the concrete realization method of described step 2 is: import substation design point table, SCD file by import file module and RCD file, generate the corresponding list of signals to be checked, generate the corresponding virtual IED smart device and the corresponding configuration information inside the device, and generate the virtual master station according to the configured port and network information. 3 . The method for telechecking based on SCD files and RCD files according to claim 2 , wherein: the signal list to be checked includes point number, signal name and alarm level information. 4 . 4. a kind of tele-checking method based on SCD file and RCD file according to claim 2, is characterized in that: described step 2 in the import process, carries out format check to the SCD file and RCD file of import, If the imported file format is inconsistent with the standard canonical format, an error message will be given. 5. a kind of tele-checking method based on SCD file and RCD file according to claim 1, is characterized in that: the concrete realization method of described step 4 comprises the following steps: ⑴Analyze the access points, logical devices, logical nodes, data objects, data attributes and interconnection information in the SCD file to build a virtual IED intelligent device; build a virtual master model by analyzing the master network information and protocol type information; (2) Parse the RCD file, and obtain the telecontrol signal forwarding relationship information by one-to-one correspondence between the des field corresponding to the signal description and the IEC61850 pathname reference field corresponding to the telecontrol host; (3) The virtual IED intelligent device sequentially sends the action-return signal of the corresponding device through a fixed interval and sends it to the remote control host. The remote control host receives the corresponding signal and uploads the signal to the virtual master station through the forwarding relationship table and checks and receives it at the same time. Whether the received signal is in one-to-one correspondence with the action sent by the virtual IED smart device and the state of the reset signal; record the time when the virtual IED smart device sends the action and the reset signal and the action and reset time received by the virtual master station; ⑷ If the signal, point number and corresponding signal state received by the virtual master station are completely consistent with the signal sent by the virtual IED smart device, the signal passes the check; if the signal state received by the virtual master station is inconsistent or fails to receive When the signal arrives, the station maintenance personnel intervene to check whether the remote control configuration and remote control wiring diagram are correct, and at the same time check whether the point number of the signal in the design point table corresponds to the actual equipment signal point number, and check the station equipment configuration and equipment at the same time. Is the internal wiring correct? 6. a kind of telecontrol checking method based on SCD file and RCD file according to claim 5, is characterized in that: described virtual IED intelligent equipment comprises secondary equipment table, IED instance configuration, communication configuration information, GOOSE/ SV configuration and IED virtual terminal connection relationship; the virtual master station model includes the master station IP, the master station and the telecontrol communication port and the data transmission protocol type. 7. a kind of tele-checking method based on SCD file and RCD file according to claim 1, is characterized in that: in described step 4, checking signal comprises that type comprises common remote signaling, communication interruption remote signaling and telemetry signal, The verification contents include the remote signaling action signal, the remote signaling reset signal, the telemetry sent value and the telemetry received value. 8. a kind of tele-checking method based on SCD file and RCD file according to claim 1, is characterized in that: in described step 4, the telemetry value that virtual IED equipment sends to virtual master station needs to be verified by reverse calculation Check whether the telemetry value sent by the virtual IED smart device is correct. 9. a kind of tele-checking method based on SCD file and RCD file according to claim 1, is characterized in that: in described step 4, the action signal that virtual IED intelligent equipment action signal and virtual master station receive pass through The red square is marked, the reset action sent by the virtual IED intelligent device and the reset signal received by the virtual master station are marked by the green square, the checked signal is marked with the "√" symbol, and the unchecked signal is marked with "×" ” symbol to mark. 10. a kind of tele-checking method based on SCD file and RCD file according to claim 1, is characterized in that: in described step 5, will automatically carry out group display by check signal and fail check signal, and Gives the number of passed check signals and the number of failed check signals.

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