Controller, control method and rapid mechanical switch comprising controller

Abstract

The invention provides a controller, a control method, a rapid mechanical switch comprising the controller, a controller position sensor, a switch control panel and a discharge loop. The position sensor is installed on a switch body of the rapid mechanical switch and used for collecting position information of the switch body. The switch control panel is connected with the position sensor and thedischarge loop, and is also connected with an external circuit breaker control system; the switch control panel is used for sending the acquired position information of the switch body to an externalcircuit breaker control system, and controlling the switch body to act by triggering the discharge loop according to a received action instruction issued by the external circuit breaker control system, so that rapid control of the rapid mechanical switch is realized; the switch body does not need an insulating pull rod, so that the problem of speed reduction of the switch body due to large mass isavoided, and the action speed of the switch body is increased; according to the invention, the position sensor can collect the closing position of the switch body, meets the requirements of a voltage-withstanding position and an opening position, and improves the position detection speed.

Description

technical field [0001] The invention relates to the technical field of mechanical switches, in particular to a controller, a control method and a fast mechanical switch including the controller. Background technique [0002] High-voltage DC circuit breaker is an important protection device of DC system, which is used to quickly complete breaking in the event of DC system failure. DC circuit breakers can generally be divided into mechanical DC circuit breakers, solid state DC circuit breakers and hybrid DC circuit breakers. According to different arc extinguishing principles, mechanical DC circuit breakers can be divided into vacuum circuit breakers, sulfur hexafluoride circuit breakers, oily (less oily) circuit breakers, compressed air circuit breakers, magnetic blowing circuit breakers and gas circuit breakers, At present, vacuum circuit breakers and sulfur hexafluoride circuit breakers have replaced other circuit breakers on a large scale and are widely used in power syst...

AI Technical Summary

Problems solved by technology

[0004] Since the action of the semiconductor components in the high-voltage DC circuit breaker needs to be closely coordinated with the fast mechanical switch, it is necessary to detect the opening and closing state of the fast mechanical switch within a hundred microseconds, but the existing controller for the fast mechanical switch The state of the switch body is detected by means of mechanical linkage auxiliary nodes, the detection delay is more than a few milliseconds, and the detection speed is slow

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