Expansion method of power system IEC60870-5-101/104 standard

Abstract

An expansion method of power system IEC60870-5-101 / 104 standard comprises the following steps: a station end main module judges ASDU class identifier according to the received downlink information, if the class identifier is equal to 8CH, a protection sub-module is used to process, otherwise, processing is carried out according to standard flow, the protection sub-module processes a protection instruction into internal format according to the content of an information object, carries out protection instruction operation and packs the obtained protection information into user-defined ASDU message format which is sent to the main module for processing; a dispatch end statue main module judges the received information, if the class identifier is equal to 8CH, protection information part is packed into the internal format which is sent to the protection sub-module, otherwise, processing is carried out according to standard flow, and the protection sub-module directly packs the protection instruction into user-defined ASDU message format which is sent to the statute main module for processing; the protection sub-module invokes corresponding protection dynamic library for processing after simple judgment according to the protection information sent by the statute main module.

Description

technical field [0001] The invention relates to the comprehensive automation technology of the electric power system, in particular to the technical method of extending the IEC60870-5-101 / 104 standard for the interconnection and information sharing between the station end and the dispatching end equipment of the electric power system. Background technique [0002] With the development of the power system and the continuous expansion of the power grid, new technologies have been vigorously promoted in the power system. Especially in recent years, the large-scale application of integrated automation technology in the power system shows that the power system will usher in a wave of technological innovation, and the secondary system of the substation has developed from the conventional method to the direction of intelligent and microelectronic technology. The rapid expansion of the amount of information has made many original communication protocols unable to meet the developmen...

AI Technical Summary

Problems solved by technology

The rapid expansion of the amount of information has made many of the original communication protocols unable to meet the development needs. How can we realize the interconnection and information sharing between dispatching and plant-side equipment? IEC60870-5-101 is a communication interface and specification developed to solve this problem

With the deepening of the application, it is found that IEC60870-5-101 only defines the information transmission of the conventional part, and the transmission of the amount of information is also subject to certain restrictions, and there is a lack of scheduling for other smart devices such as VQC, protection, etc. on the station side to realize information sharing. Definition, especially when the integrated self-station transfers protection events to remote signaling, uploading, scheduling / centralized control, the amount of information is extremely large, and it is extremely error-prone, which brings a lot of useless workload to operation and maintenance personnel

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