Title: Reactive Power Optimization of Distribution Network with Photovoltaic Power Plant Based on PSO
Abstract: For low-voltage distribution network with photovoltaic( PV) power plants,when voltage level reduces,the voltage drop on transmission line is not only influenced by reactive power,but also fluctuates more obviously due to active power. The voltage fluctuation components caused by active and reactive power are algebraic sum relations,so the reactive power compensation can make up for the voltage fluctuations caused by the change of active power to a certain extent. Taking the optimal system operation cost as the target function,including the reduced power loss cost of distribution network after compensation and the added cost of reactive power compensation device,this paper established the optimization mathematical model of reactive power compensation for distribution network with PV power plant. The model considered the reactive power regulation capability of grid-connected inverter in PV power plant,and adopted the improved multiorganizational particle swarm optimization( PSO) to solve the programming model. Finally,the accuracy and validity of the model and algorithm were validated by example analysis.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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