Circuit breaker controller comprising distributed type power distribution network and working method of circuit breaker controller

Abstract

A circuit breaker controller comprising a distributed type power distribution network is characterized by being composed of an MCU main control chip, an analog acquiring and conditioning module, a switching value processing module, a communication module, a man-machine interface module, a power module and a drive system; a working method of the circuit breaker controller includes the steps of signal acquisition, information exchange, remote regulation operation and circuit breaker action control. The circuit breaker controller and the working method have the advantages that the structure is simple, and software is easy to understand; real-time monitoring is achieved, and the four-remote-control function is achieved; faults are isolated, and safe running of a power grid is ensured; the augmentation effect is avoided, and the protection range is widened; the power direction judgment function is achieved, and the defect that protection selectivity is lost when a distributed type power supply reversely supplies power to fault points is prevented; wide market application prospects and engineering application value are achieved.

Description

(1) Technical field: [0001] The invention belongs to the field of intelligent distribution network of electric power system, and relates to a circuit breaker controller based on a three-stage current method and a communication system to realize the protection of a distribution network containing a distributed power supply, in particular to a circuit breaker controller containing a distributed power supply Circuit breaker controller for distribution network and method of operation thereof. (two) background technology: [0002] With the rapid development of the economy, electricity has penetrated into every industry. Power users have higher and higher requirements for electric energy. Several large-scale power outages in recent years have made people more and more aware of the disadvantages of centralized large power grids; at the same time, countries all over the world are facing energy shortages; in addition, environmental issues have also attracted more and more attention ...

AI Technical Summary

Problems solved by technology

[0004] The access of distributed power makes the traditional distribution network change from a single power supply system to a multi-power supply system. Compared with the traditional distribution network, when a fault occurs, the magnitude and direction of the fault current will change, resulting in the traditional relay protection mode The range of protection and the coordination between protections are affected

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