Distributed self-healing control method of power distribution network

Abstract

The invention discloses a distributed self-healing control method of a power distribution network, relating to the technical field of a power system. The technical problems to be solved are to improve the real-time capability and the reliability of the self-healing control. The method is characterized by comprising the following steps: a plurality of self-healing control units are arranged in each power distribution subnetwork, wherein each self-healing control unit corresponds to a plurality of automatic power distribution terminals in the power distribution subnetwork; when a fault occurs to the power distribution network, each self-healing control unit firstly obtains each fault current data corresponding to the automatic power distribution terminals, then communicates with the electrically adjacent self-healing control units to obtain the fault current data of each automatic power distribution terminal corresponding to the electrically adjacent self-healing control units, then judges a location of a fault point according to fault characteristics of the power distribution network to locate the fault, and finally isolates fault areas to recover the power supply for non-fault areas. The method provided by the invention is strong in real-time capability and high in reliability.

Description

technical field [0001] The invention relates to power system technology, in particular to the technology of a distributed self-healing control method for a power distribution network. Background technique [0002] There are a certain number of automatic distribution terminals in the distribution network to monitor the operation of the distribution network. The traditional power distribution network adopts the centralized control method to realize self-healing control, that is, when the distribution network suffers from a permanent fault, the automatic power distribution master station collects the fault current data of each automatic power distribution terminal in the power distribution network, and then according to the distribution The fault characteristics of the power network determine the location of the fault point, realize fault location, and then send control commands to each automated power distribution terminal to isolate the fault area and restore power to the non...

AI Technical Summary

Problems solved by technology

This self-healing control method has poor real-time performance. The automatic power distribution master station needs to collect the fault current data of all automatic power distribution terminals before making a decision. Therefore, it takes a long time from the fault occurrence to the isolation of the fault area and the restoration of power supply in the non-fault area. time, and the reliability is also poor. Once the automatic power distribution master station has a problem, the self-healing control of the entire power distribution network will be completely invalid.