利用分布式电源改善三相四线低压配电网运行特性方法（英文）  

Improve Operation Characteristics in Three-Phase Four-Wire Low-Voltage Distribution Network Using Distributed Generation

作　　者：孟晓芳[1] 王立地[1] 王小宁 王英男 刘然 王慧[1] MENG Xiaofang;WANG Lidi;WANG Xiaoning;WANG Yingnan;LIU Ran;WANG Hui(College of Information and Electric Engineering,Shenyang Agricultural University,Shenyang110866,Liaoning Province,China;Beijing Chaoyang Power Supply Company,Chaoyang District,Beijing100020,China;Shenyang Association for Science and Technology,Shenyang110063,Liaoning Province,China;State Grid Liaoning Electric Power Company Limited Economic Research Institute,Shenyang110015,Liaoning Province,China)

机构地区：[1]沈阳农业大学信息与电气工程学院,辽宁省沈阳市110866 [2]国网北京朝阳供电公司,北京市朝阳区100020 [3]沈阳科学技术协会,辽宁省沈阳市110063 [4]国网辽宁省电力有限公司经济技术研究院,辽宁省沈阳市110015

出　　处：《电网技术》2018年第12期4091-4100,共10页Power System Technology

基　　金：国家科技支撑计划项目(2012BAJ26B00);辽宁省自然科学基金项目(20170540810)~~

摘　　要：该文提出了利用分布式电源(DG)单点分相配置改善三相四线制低压电网运行特性的方法。在建立DG对电压、有功损耗以及三相不平衡影响的数学模型基础上,提出了确定DG位置和容量的多目标综合评价数学模型。根据低压配电网的实际运行情况,利用模糊综合评价法(FCE)确定综合评价数学模型权系数。利用粒子群算法(PSO),确定各相DG的配置位置和容量。以实际0.4kV三相四线制网络及2015年数据为例,利用所提出的方法,分别对最小、中间、最大负荷三种典型的运行情况配置DG,通过比较分析配置DG前后运行特性,验证了该文提出方法的有效性。该文提出的方法可以用于改善低压配电网的运行特性。In this paper,a phase segregated optimization method locating single distributed generation(DG)is proposed to improve operation characteristics of three-phase four-wire LV distribution network.Based on an impact model of DG on voltage,active power loss and three-phase imbalance load,a multi-objective comprehensive evaluation mathematical model is proposed to find the location and size of the single DG.The weighting factors of the model are obtained with fuzzy comprehensive evaluation(FCE),considering operation of an actual distribution network.Particle swarm optimization(PSO) is employed to determine the configuration location and capacity of each phase DG.The method is tested on an actual 0.4kV three-phase four-wire network,and the data of the network in2015is used.DG operation cases of minimum, is configured in three typical middle and maximum loads. Main aspects of the operation characteristics in three typical operation cases are analyzed and compared with and without DG.Results show effectiveness of the proposed approach.The method proposed can serve as an efficient tool for improvement of operation characteristics of LV distribution network.

关 键 词：低压配电网 运行特性 分布式电源(DG) 电压偏移 有功功率损耗 粒子群算法(PSO) 模糊综合评价法(FCE) 

分 类 号：TM721[电气工程—电力系统及自动化]