考虑电压质量的分布式电源选址定容  

Locating and Sizing of Distributed Generation for Improved Voltage Quality

作　　者：叶萌[1] 刘文霞[1] 张鑫[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《现代电力》2010年第4期30-34,共5页Modern Electric Power

摘　　要：分布式电源(DG)对配电网的影响与其接入的位置及容量密切相关,为此对DG的选址定容问题进行研究。首先介绍不同类型DG在潮流计算中的模型,详细分析电压稳定性指标,然后提出基于电压稳定性指标的DG选址方法,分析DG接入对配电网网络损耗和电压质量的影响,提出以降低网络损耗和改善电压质量为目标的分布式选址定容目标函数,并采用混合智能算法进行DG定容的优化计算。算例分析表明该方法在DG选址和定容问题中是有效的。The location and capacity of distributed generation（DG） have great influence on distribution network,so issues on locating and sizing of DG are discussed in this paper.The models of different types of DG used in power flow calculation are introduced,and voltage stability index is also analyzed in detail.Then DG locating method based on voltage stability index is presented,and the influence of DG on network power loss and voltage quality in distribution network is analyzed.In addition,the objective function of DG locating and sizing to reduce network power loss and improve voltage quality is proposed,and hybrid intelligent algorithm is used to solve it.In the end,analysis of example demonstrates the effectiveness of the proposed method.

关 键 词：分布式电源 网络损耗 电压质量 电压稳定性指标 选址定容 

分 类 号：TM714.3[电气工程—电力系统及自动化]