考虑模糊参数的DG配电网静态电压稳定指标研究  

Research on Static Voltage Stability Index of DG Distribution Network Considering Fuzzy Parameters

作　　者：周惠芳[1] Zhou Huifang(Hunan Electrical College of Technology,Xiangtan Hunan 411101,China)

机构地区：[1]湖南电气职业技术学院,湖南湘潭411101

出　　处：《电气自动化》2021年第4期17-19,38,共4页Electrical Automation

基　　金：湖南省自然科学基金项目(2018 JJ 5009)。

摘　　要：为了准确提供DG安全运行域,研究了DG出力不确定性情况下的静态电压稳定指标。考虑在DG出力具有间歇性、不确定性及配网接入负荷模糊性的基础上构建静态电压稳定性指标模型。以异步发电机为例,基于模糊参数下以IEEE 33节点配电系统为算例,对P-Q(V)型DG按不同容量、不同功率因素和不同位置接入配电网。通过仿真分析研究了不同接入方案对静态电压稳定性的重要影响,验证了模型的有效性。为分布式风机电源选址、定容和安全运行域求取提供参考。In order to accurately provide the safe operating domain of DG,the static voltage stability index under uncertainty was studied.Considering the intermittency,uncertainty of DG output and the ambiguity of distribution network access load,a static voltage stability index model was constructed.Taking asynchronous generators as an example,taking the IEEE 33-node distribution system based on fuzzy parameters as a calculation case,the P-Q(V)type DG was connected to the distribution network according to different capacities,different power factors,and different locations.The important influence of different access schemes on static voltage stability was analyzed through simulation,and the validity of the model was verified.Finally,the research provided a reference for the location selection,constant capacity,and safe operation domain of distributed wind turbine power supply.

关 键 词：分布式发电 配电网 前推回代 负荷和DG出力模糊化 静态电压稳定指标 

分 类 号：TM712[电气工程—电力系统及自动化]