Control method of novel medium and high-voltage power distribution network controller

Abstract

The invention provides a control method of a novel medium and high-voltage power distribution network controller. The method includes the specific steps of enabling a controller to perform system feedback according to electric signals; receiving discharge switch 15V closing pulse signals transmitted from a fast controller, when a discharge switch is determined to be closed about 10-15 ms later and the voltage at both ends of a capacitor is detected to be zero, issuing a closing instruction to a bypass switch one closing time earlier, and after the bypass switch is determined to be closed, issuing a discharge switch opening instruction; when the line current exceeds 10 A and after a bypass switch energy-storage capacitor is completely charged delayed 2 minutes later, issuing a bypass switch opening instruction; when the instantaneous value of the line current exceeds 1.459 A for 0.4 ms continuously, immediately starting an 'exit system' operation.

Description

technical field [0001] The invention relates to the field of control of series compensation equipment, in particular to a control method of a novel middle and high voltage distribution network controller. Background technique [0002] At present, with the development of the economy and the rapid growth of electricity loads, the power grids in remote areas, which account for most of the country's area, are extending to areas without electricity. The low voltage and high voltage fluctuation rate lead to the power supply voltage at the load end far exceeding the quality standards stipulated by the state, which affects the production and life of people in various regions. The research on series compensation technology can effectively solve the problem of power supply voltage quality in distribution network, but it is limited to a series of problems such as poor input-output ratio, poor safety and reliability of the device itself, so that series compensation technology has not be...

AI Technical Summary

Problems solved by technology

[0002] At present, with the development of the economy and the rapid growth of electricity loads, the power grids in remote areas, which account for most of the country's area, are extending to areas without electricity. The low voltage and large voltage fluctuation rate lead to the power supply voltage at the load end far exceeding the quality standards stipulated by the state, which affects the production and life of people in various regions

The research on series compensation technology can effectively solve the problem of power supply voltage quality in distribution network, but it is limited to a series of problems such as poor input-output ratio, poor safety and reliability of the device itself, so that series compensation technology has not been used in medium and high voltage distribution networks. promotional use

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