CN104578407A - Method for exporting full-substation virtual terminal connection of intelligent substation by devices without repetition - Google Patents

Abstract

The invention discloses a method for deriving the virtual terminal connection of an intelligent substation without repetition according to a device, and belongs to the technical field of electric power automation. The present invention comprises the following steps: SS1 imports the SCD file and organizational hierarchy file of the intelligent substation; SS2 marks the connected receiving virtual terminal for the sending virtual terminal of each device; SS3 checks whether the virtual terminal of each device is connected according to the scanning rule , for the connected virtual terminals, extract the information of the virtual terminals according to the information extraction rules, and record the information of the devices and intervals involved in the connection of the virtual terminals; SS4 derives the information related to the connection of the virtual terminals extracted and recorded in the step SS3 according to the device according to the derivation rules , and organize the derived information by voltage class and interval. The invention realizes the automatic derivation of virtual terminal connection relationship in the whole station, and ensures that no function of virtual terminal connection is missed while eliminating repeated connection information.

Description

A method for deriving virtual terminal connections of smart substations without repetition according to devices

technical field

The invention belongs to the technical field of electric power automation, and more precisely, the invention relates to a method for deriving virtual terminal connections of an intelligent substation without repetition according to devices.

Background technique

The smart substation adopts the IEC61850 standard, and uses the GOOSE method to realize the information interaction between the devices, tripping and closing the exit, etc., replacing the cables in the traditional substation, so the on-site installation workload is greatly reduced compared with the traditional substation, but in the joint commissioning stage The workload has increased, and problems often occur due to wrong connection of virtual terminals during debugging. At present, the virtual terminal relationship table provided by design institutes in various places does not have a unified format specification requirement, and the same virtual terminal connection is often marked on the sending end device side and the receiving end device side. This kind of information duplication is not conducive to the commissioning personnel of the substation Debug and record according to the virtual terminal relationship table. Therefore, debuggers urgently need a virtual terminal connection relationship table file that is complete in content, has as little repetitive information as possible, and is conducive to debugging records.

Since the virtual terminal connection relationship between various devices in the substation is configured in the system configuration tool, the SCD file of the smart substation exported by the system configuration tool contains the complete virtual terminal connection relationship of the whole station, and computer software can read it. Take this file and extract from it the virtual terminal connections involved for each device. Since the virtual terminal connection relationship in the smart substation only exists between a single receiving virtual terminal and a single sending virtual terminal, and the device where the virtual terminal is located can be divided into process layer devices, such as intelligent terminals, merging units, and interval layer devices, such as protection Devices, measurement and control devices, according to which all virtual terminal connections can be divided into three categories: connections between process layer devices; connections between process layer devices and interval layer devices; connections between interval layer devices.

Contents of the invention

The purpose of the present invention is to provide a method for automatically deriving the virtual terminal connection used in the auxiliary debugging tool software of the intelligent substation. Aiming at the problems existing in the joint commissioning of the intelligent substation at present, it provides a method for deriving the virtual terminal connection of the whole station of the intelligent substation according to the device The relationship method is based on the smart substation SCD file and the file containing voltage level, interval and device organization level information, and derives the virtual terminal connection relationship without repeated content in units of devices.

The present invention adopts the following technical scheme: a method for deriving the virtual terminal connection of the intelligent substation without repetition according to the device, which is characterized in that it includes the following steps:

SS1 imports the SCD file and organizational hierarchy file of the smart substation;

SS2 marks the connected receiving virtual terminal for the sending virtual terminal of each device;

SS3 checks whether the virtual terminals of each device are connected according to the scanning rules, and for the connected virtual terminals, extracts the information of the virtual terminals according to the information extraction rules, and records the information of the devices and intervals involved in the connection of the virtual terminals;

SS4 derives the virtual terminal connection-related information extracted and recorded in step SS3 by device according to the derivation rules, and organizes the derived information according to voltage levels and intervals.

Preferably, the organizational hierarchy file described in step SS1 is generated by a system configuration tool, and contains three-layer organizational structure information of voltage levels, intervals and devices of smart substations.

Preferably, the scanning rule described in step SS3 is: for each bay layer device, check all virtual terminals whose types are GOOSE sending, GOOSE receiving, and SV receiving; for each process layer device, check all virtual terminals whose type is GOOSE Phantom terminal for Transmit and SV Transmit.

Preferably, the information extraction rule described in step SS3 is: for the virtual terminal of the separation layer device, if a connection is established with the virtual terminal of the process layer device or the receiving virtual terminal of other separation layer devices, extract the Virtual terminal information; for the virtual terminal of the process layer device, if a connection is established with the receiving virtual terminal of other process layer devices, the information of the virtual terminal of the process layer device is extracted.

Preferably, the derivation rule described in step SS4 is: for the virtual terminal of the interval layer device, it is derived according to the GOOSE sending, GOOSE receiving, and SV receiving packets; for the process layer device, it is derived according to the GOOSE sending and SV sending packets.

Beneficial effects achieved by the present invention: (1) The present invention is mainly applicable to the system joint commissioning personnel of the intelligent substation in the commissioning work, using the commissioning auxiliary tool software, based on the SCD file exported by the system configuration tool and storing the matching SCD file The organization level file of the voltage level, interval, and device information in the interval of the intelligent substation completes the automatic generation of the virtual terminal connection relationship table without repeated information; The terminal connection method realizes the automation of the export of the virtual terminal connection relationship in the whole station, and while eliminating the repeated connection information, it ensures that no virtual terminal connection is missed, and the information is organized and exported through multi-level grouping, which is beneficial to smart substations Based on this, debugging personnel can debug virtual terminal connections and record the results to improve debugging efficiency.

Description of drawings

Fig. 1 is a schematic flow chart of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

As shown in Figure 1 is a schematic flow diagram of the present invention, the present invention provides a method of deriving the virtual terminal connection of the smart substation without repetition according to the device, and specifically adopts the following steps:

The first step: the intelligent substation auxiliary debugging tool software (hereinafter referred to as the tool) reads the SCD file of the intelligent substation;

Step 2: The tool reads the organizational level file that stores the voltage level, interval, and device information of the smart substation that is matched with the SCD file;

Step 3: The tool marks the connected receiving virtual terminal for the sending virtual terminal of each device;

Step 4: The tool checks whether the virtual terminals of each device are connected according to the scanning rules. For the connected virtual terminals, extract the information of the virtual terminals according to the information extraction rules, and record the information of the devices and intervals involved in the connection of the virtual terminals;

Step 5: The tool exports the virtual terminal connection information extracted and recorded in the previous step by device according to the export rules, and organizes the exported information according to the voltage level and interval.

The interval layer device in the present invention mainly refers to the protection device and the measurement and control device, and the process layer device mainly refers to the intelligent terminal and the merging unit. Other devices in the intelligent substation can assist in the debugging tool software (hereinafter referred to as the tool) in the intelligent substation. Pre-configured as a bay level device or a process level device.

Preferably, taking a certain smart substation as an example, the specific method steps of the present invention are as follows:

Step 1: After the commissioning personnel complete the system configuration of the smart substation using NARIConfiguration Tool, the system configuration tool of NARI, including the specified voltage level, interval, devices in the interval, and all virtual terminal connections, export the smart substation The SCD file: yab.scd, and then use the tool to read the SCD file to obtain the information of the total station device and virtual terminal information;

Step 2: Use the tool to read the organizational hierarchy file: structure.xml, which is automatically generated by NARI Configuration Tool during the system configuration process and saves the voltage level, interval, and device information in the interval: structure.xml, and obtains the voltage level of the whole station, including 220kV and 110kV , 10kV and transformer, the interval information of each voltage level, for example, there are multiple intervals such as 220kV far double-wire in the 220kV voltage level, and the interval layer device and process layer device information included in each interval, such as the 220kV far double-wire interval. Protection device PL2201A (device description is CSC-103BE-220kV remote two-wire protection A), IL2201A (device description is JFZ-600F-220kV remote two-wire intelligent terminal A) and other devices;

Step 3: The tool marks the connected receiving virtual terminal for the sending virtual terminal of each device. Taking the protection device PL2201A in the 220kV double long-line interval in the 220kV voltage level as an example, its sending virtual terminal PL2201API/PTRC2.Tr.general has established a connection with the receiving virtual terminal IL2201ARPIT2/GOINGGIO2.SPCS01.stVal of the intelligent terminal IL2201A, so When the tool checks the receiving virtual terminal of the intelligent terminal IL2201A, it finds that there is a mapping relationship between the receiving virtual terminal IL2201ARPIT2/GOINGGIO2.SPCS01.stVal and the sending virtual terminal PL2201API/PTRC2.Tr.general of the protection device PL2201A, so it is protected in the memory data. The sending virtual terminal PL2201API/PTRC2.Tr.general of the device PL2201A marks its receiving virtual terminal as IL2201ARPIT2/GOINGGIO2.SPCS01.stVal;

Step 4: The tool checks whether the virtual terminals of each device are connected according to the scanning rules. For the connected virtual terminals, extract the information of the virtual terminals according to the information extraction rules, and record the information of the devices and intervals involved in the connection of the virtual terminals. Take the protection device PL2201A in the previous step as an example. Since it is a spacer device, the tool traverses each GOOSE sending virtual terminal, each GOOSE receiving virtual terminal, and each SV receiving virtual terminal when scanning the device. When traversing each GOOSE sending virtual terminal, you will find that there is a connection between the sending virtual terminal PL2201API/PTRC2.Tr.general and the receiving virtual terminal IL2201ARPIT2/GOINGGIO2.SPCS01.stVal, and the device where the receiving virtual terminal is located is the process in this interval layer device. Therefore, the following information is recorded: the description of the sending virtual terminal "jump phase A", the name of the protection device "PL2201A" and the description "CSC-103BE-220kV remote two-wire protection A", the name of the intelligent terminal "IL2201A" and the description "JFZ- 600F-220kV remote two-wire intelligent terminal A", interval "this interval";

Step 5: The tool exports the virtual terminal connection information extracted and recorded in the previous step by device according to the export rules, and organizes the exported information according to the voltage level and interval. Take the protection device PL2201A in the previous step as an example, the exported information is located in the table page "Protection device PL2201A" in the file "220kV double distance line interval.xls" under the folder "220kV voltage level", and send according to GOOSE, GOOSE Receiving and SV receiving groups sequentially export the information related to the virtual terminal connection in each group. When exporting the virtual terminal connection in the GOOSE sending group, there is a gap between PL2201API/PTRC2.Tr.general and IL2201ARPIT2/GOINGGIO2.SPCS01.stVal The connection relationship: this interval PL2201A (CSC-103BE-220kV remote two-wire protection A) sends jump phase A to IL2201A (JFZ-600F-220kV remote two-wire intelligent terminal A).

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (5)

1. A method for deriving intelligent substation full-station virtual terminal connection without repetition by device, is characterized in that, comprises the following steps: SS1 imports the SCD file and organizational hierarchy file of the smart substation; SS2 marks the connected receiving virtual terminal for the sending virtual terminal of each device; SS3 checks whether the virtual terminals of each device are connected according to the scanning rules, and for the connected virtual terminals, extracts the information of the virtual terminals according to the information extraction rules, and records the information of the devices and intervals involved in the connection of the virtual terminals; SS4 derives the virtual terminal connection-related information extracted and recorded in step SS3 by device according to the derivation rules, and organizes the derived information according to voltage levels and intervals. 2. A method according to claim 1 that derives the connection of virtual terminals in the whole station of smart substation without repetition according to the device, it is characterized in that, the organizational hierarchy file described in the step SS1 is generated by a system configuration tool, including There are three-layer organizational structure information of voltage level, interval and device of smart substation. 3. A method of deriving the virtual terminal connections of smart substations without repetition according to the device according to claim 1, characterized in that, the scanning rule described in the step SS3 is: for each compartment layer device, check all Virtual terminals of type GOOSE send, GOOSE receive, and SV receive; for each process level device, check all virtual terminals of type GOOSE send and SV send. 4. A kind of method according to claim 1 without repetition deriving the virtual terminal connection of intelligent substation whole station, it is characterized in that, the information extraction rule described in the step SS3 is: for the virtual terminal of the interval layer device, If a connection is established with the virtual terminal of the process layer device or the receiving virtual terminal of other interval layer devices, extract the information of the virtual terminal of the interval layer device; for the virtual terminal of the process layer device, if it is connected with the receiving virtual terminal of other process layer After the connection is established, the information of the virtual terminal of the process layer device is extracted. 5. A kind of method according to claim 1 without repetition deriving the virtual terminal connection of the intelligent substation whole station, characterized in that, the derivation rule described in the step SS4 is: for the virtual terminal of the interval layer device, press GOOSE sending, GOOSE receiving, SV receiving packet derivation; for process layer devices, GOOSE sending and SV sending packet derivation.