Configuration method of power quality monitoring points considering distributed power

Abstract

The invention discloses a PQ (Power Quality) monitoring point configuration method metering a DG (Distributed Generator). The PQ monitoring point configuration method comprises the following steps of defining related concepts in PQ monitoring point optimal configuration metering DG grid connection; defining NKCL of the minimum number meeting KCL (Kirchhoff Current Law); defining an observable voltage area; improving a BPSO (Binary Particle Swarm Optimization) model; constructing a new evaluation function; initializing the positions and the speeds of particle swarms, substituting the particle swarms into an evaluation functional expression to compute an adaptive value, and assigning an initial extreme value; updating all particles according to an iteration expression of the positions and the speeds of the particles; then substituting all the particle swarms into the evaluation functional expression to compute an adaptive value; breaking out of a loop when maximum iterations are achieved, and outputting a current global extreme value as an optimization result; otherwise, returning to step 7 to carry out continuous iteration.

Description

technical field [0001] The invention relates to a method based on improved particle swarm optimization to intelligently optimize the configuration of power quality monitoring points in order to realize comprehensive monitoring of power quality and intelligent diagnosis of disturbance events in an intelligent distribution network that takes into account distributed power grid-connected. field of electrical engineering and power quality. Background technique [0002] With the marketization of electricity and the development of social economy, the economic losses caused by power failures and power quality (Power Quality, PQ) problems continue to increase. At the same time, today's energy crisis and ecological environment problems have made distributed power generation (Distributed Generator, DG) based on new energy sources more and more attention. However, the grid connection of distributed power generation will have a certain impact on the node voltage, power flow and power q...

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the disadvantage that the existing optimal configuration method cannot simultaneously satisfy the overall considerable voltage and current, and at the same time realizes the comprehensive monitoring of the power quality of the intelligent distribution network with distributed power sources and meets the requirements of intelligent diagnosis of disturbance events at a lower cost, and provides A method for optimal configuration of power quality monitoring points based on improved particle swarm optimization, taking into account distributed power sources and satisfying the voltage and current requirements, and having a good overall economical and system optimization effect

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