Full-station anti-mistaking closedown design method based on IEC61850 standard

Abstract

The invention relates to an all-station system anti-misoperation lockout design method based on IEC61850 standard which processes uniform collocation management to all-station anti-misoperation lockout logic rule by method of combining with integrated anti-misoperation lockout in station control layer and dispersed anti-misoperation lockout in distance layer. A remote control interlocking is usedbetween a background monitor system in station control layer and a remote communication server, IEC61850 standard is used for communication between the station control layer and distance layer to realize data interlocking; GOOSE serve provided by IEC61850 standard among anti-misoperation lockout devices in distance layer to realize data sharing among distances and complete anti-misoperation function in distances. The method makes up for a lack of traditional anti-misoperation, provides an uniform anti-misoperation logic collocation management, ensures consistency of the anti-misoperation logic rule, provides convenient operation maintaining management method; uses two-stage anti-misoperation lock to realize anti-misredundancy and complement each other, increases safe reliability of systemoperation.

Description

technical field [0001] The invention relates to an anti-misoperation locking design method of a power system, in particular to an anti-misoperation locking design method of a digital substation automation system based on the IEC61850 standard. The utility model belongs to the technical field of electric power automation. Background technique [0002] In the process of substation automation measurement and control, in order to prevent the occurrence of misoperation, the system in the station is required to have the anti-misoperation locking function. The common anti-misoperation locking includes mechanical locking, electromagnetic locking, electrical secondary anti-misoperation locking and microcomputer anti-misoperation locking. Mechanical locking is a locking method that achieves mutual interlocking due to the mechanical structure of the equipment operating mechanism. This locking can only be realized in an integrated isolating switch or a complete set of switch cabinets, a...

AI Technical Summary

Problems solved by technology

However, the wiring of the secondary circuit is complicated. In addition, the insulation damage of the secondary operation circuit of the electrically operated isolating switch and the grounding switch can easily lead to mis-pulling and mis-closing of the switch; The warehouse and on-site locks realize anti-misoperation locking, but when the microcomputer system fails and the lock is released, the "five defenses" function is completely lost

The traditional anti-misoperation locking method can no longer meet the requirements, and the microcomputer anti-misoperation locking system, which is the development direction of the comprehensive automation application of substations, has no unified interface with the anti-misoperation locking of interval equipment, and the logic rules of the microcomputer anti-misoperation locking system cannot be compatible with the anti-misoperation locking of interval equipment. Logic sharing, which needs to be further improved and improved in terms of functions

Images