摘要
分布式电源(Distributed Generation,DG)在并入配电网后,可以有效支撑电压,并且增加配电网运行灵活性,但也会导致配电网系统网损增加、电压波动等问题。提出对含多个DG配电网进行无功优化的方法。该方法的目标是降低系统有功网损和减小电压偏移,建立一种含DG配电网的无功优化数学模型,改善标准PSO算法中粒子种群易陷入局部最优而难以解得全局最优的情况。以IEEE 33节点标准算例进行仿真验证,结果表明所提改进算法可以有效减小有功损耗并提高电压质量。
The integration of distributed generation(DG)can effectively support voltage and improve operation flexibility of distribution network,while nevertheless leads to increased network loss and voltage fluctuation.This paper presents a reactive power optimization method for the operation of distribution network containing multiple DG.The objective of this method is to reduce the active power loss and voltage shift of the system,establish a mathematical model of reactive power optimization of DG-integrated distribution network,and alleviate the conventional PSO′s problem of high proneness of particle population to local optimum.The IEEE 33 node standard example is used for simulation verification.The results show that the proposed algorithm can effectively reduce active power loss and improve voltage quality.
作者
高梁
马永翔
万佳鹏
李勇
GAO Liang;MA Yongxiang;WAN Jiapeng;LI Yong(School of Electrical Engineering,Shaanxi University of Technology,Hanzhong 723000,China;State Grid Xianyang Power Supply Company,Xianyang 712000,China)
出处
《电工技术》
2023年第20期190-193,共4页
Electric Engineering
基金
陕西省教育厅专项基金(编号17JK0143)。
关键词
DG
无功优化方法
PSO算法
DG
reactive power optimization method
PSO algorithm
