A motion control method for 110kV standby automatic switchover with whole-process self-adaptive capability

Abstract

The invention discloses a 110kV backup power source automatic switching action control method with whole-process adaptive capacity. Specifically, the positions of main disconnectors at the two sides of an inner bridge switch are included in the charging conditions of a backup power source switching inner bridge mode, and the position of a main disconnector at an incoming switch line side and judgment on whether the line side has electricity or not are included in the charging conditions of a backup power source switching incoming switch mode, so a backup power source automatic switching device can identify an incoming line power failure state and a switch power failure state, and the backup power source automatic switching device cannot perform charging or discharging on the existing charged state when the switch or the line is powered off. When the backup power source automatic switching device is in good operation, operation and maintenance personnel do not need to operate a function pressing plate or an outlet pressing plate of the backup power source automatic switching device during switching operation, and the operation and maintenance personnel only need to check the operation condition of the backup power source automatic switching device before and after switching operation and in daily patrol. Thus, the efficiency of field work is improved greatly.

Description

technical field [0001] The invention relates to a 110kV standby automatic switching action control method with the ability of self-adaptation in the whole process. Background technique [0002] The backup self-injection device is the backup power self-injection device. Its working principle is that when the main power supply loses pressure for some reason, the backup self-injection device will first reliably disconnect the main power supply at the outlet, and then automatically input the backup power supply to ensure the safety of users. Continuous power supply is an important measure to ensure continuous and reliable power supply of the power system. At present, the 110kV substations of the domestic power system generally adopt the inner bridge connection mode. The 110kV line switch and the inner bridge switch in the substation are not equipped with special protection devices, but rely on 110kV standby self-injection devices, main transformer Automatic protection and high ...

AI Technical Summary

Problems solved by technology

[0004] 1) It cannot automatically adapt to various operating modes of the 110kV system. When the incoming switch, incoming line or inner bridge switch is powered off, the backup automatic switching device still has the possibility of malfunctioning

[0005] 2) When the line or switch is powered off, it is still necessary to manually operate the backup automatic switching device, and there is no operation management specification for the adaptive backup automatic switching device in the industry, and there is no basis for on-site operation and maintenance

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