A method for restore load based on microgrid

Abstract

The invention discloses a method for restoring load based on microgrid. The load recovery method comprises the following steps: a control mode of a microgrid is set and an optical storage system is adopted to provide power for the microgrid; Establishing a mathematical model of the optical storage system; On the basis of the mathematical model of the optical storage system, aiming at the continuous power supply time; acquiring paths with minimum active power from a plurality of the microgrids to a recovery load, and obtaining a plurality of shortest recovery paths; Forming a plurality of the shortest recovery paths into a recovery tree, wherein the recovery load is the load to be recovered in the case of failure, and taking the maximum coverage load as the goal to establish a maximum coverage load model; Calculating a restoration strategy of the microgrid restoration load in the shortest restoration path according to the maximum coverage load model. The method based on micro-grid restoration load can restore the critical load first and the micro-grid restoration load based on critical load first.

Description

Technical field [0001] The present invention relates to the field of micro-grid, in particular to a method for restoring load based on micro-grid. Background technique [0002] With the increasing frequency of major disasters, large-scale power outages have occurred frequently and have a major impact on the power distribution infrastructure. High-impact, low-probability events often prolong power outages and cause critical load loss, which seriously affects user safety. Existing recovery methods do not consider extreme events, but in catastrophic failures, multiple failures, large-scale blackouts, lack of power, and weak transmission are not uncommon. Therefore, after a major disaster, power generation resources may be limited , The restoration of critical loads should be given priority. There is no restoration method for restoring critical loads in the prior art. Summary of the invention [0003] The purpose of the present invention is to provide a method for restoring loads ba...

AI Technical Summary

Problems solved by technology

High-impact low-probability events often prolong outages and lead to loss of critical loads, seriously affecting user safety

Extreme events are not considered in existing recovery methods, but in catastrophic failures, multiple failures, widespread outages, lack of power, and weak transmission are not uncommon, so generation resources may be constrained after a major disaster , the critical load should be restored first, and there is no recovery method for the critical load in the prior art

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