Intelligent substation IED (Intelligent Electronic Device) configuration file management and control method based on CRC (Cyclic Redundancy Check) check codes

Abstract

The invention relates to an intelligent substation IED (Intelligent Electronic Device) configuration file management and control method based on CRC (Cyclic Redundancy Check) check codes. The method comprises the following steps: connecting all-station IED virtual terminators with a system configuration tool to generate an all-station SCD configuration file including a CRC check code, extracting IED configuration information from the all-station SCD file, and downloading the IED configuration information into a device; powering on a process level IED device, putting the CRC check code into a GOOSE message to be sent, and forwarding the CRC check code to a station level network through an MMS (Multimedia Messaging Service) message after an opposite-end bay level IED receives the message; after the bay level IED device is powered on, transmitting a CRC check code of the bay level IED device to the station level network through the MMS message by the bay level IED device; and receiving the CRC check code from the station level network by a configuration file management module installed in a station level of an intelligent substation, resolving the all-station SCD file, extracting a virtual terminator CRC check code of the IED, and judging whether the two CRC check codes are consistent or not by comparison. Through adoption of the method, checking on whether GOOSE virtual terminator configuration information downloaded into the IED is consistent with corresponding GOOSE virtual terminator configuration information in the all-station SCD file or not can be performed effectively.

Description

technical field [0001] The invention relates to a method for managing and controlling configuration files of an intelligent substation IED (Intelligent Electronic Device) based on a CRC check code. Background technique [0002] For the specific process of substation project implementation using the IEC61850 standard, see figure 1 As shown, each device manufacturer derives the CID file (including the GOOSE configuration file) of the device from the SCD file. The final CID file will be downloaded to the IED for operation. In actual engineering, due to design changes, user needs, etc., the GOOSE configuration file actually downloaded to the device is inconsistent with the corresponding GOOSE configuration information in the SCD file. Therefore, a control method is urgently needed to ensure that the GOOSE configuration downloaded to the device The corresponding GOOSE configuration information in the file and the SCD file are strictly consistent. [0003] The CRC check code is...

AI Technical Summary

Problems solved by technology

[0005] 1) Since the merging unit, intelligent terminal and integrated intelligent device are generally installed in the outdoor intelligent central control cabinet of the substation, considering the harsh working environment of the substation switchyard, in order not to affect the safe operation of the device, the devices of most manufacturers There is no LCD screen, so it is very inconvenient for debugging and acceptance personnel to check the CRC check code

[0006] 2) The secondary system of smart substations with a high voltage level of 220kV and above has a large scale and a large number of IEDs. In addition, the virtual terminal configuration is often repeatedly modified during the commissioning process, so the commissioning and acceptance personnel rely on manual verification of the CRC check code of the virtual terminals. , not only the workload is heavy but also prone to omissions and errors

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