交直流互联下的大型受端电网静态电压稳定性研究框架与应用  

Research Framework of Static Voltage Stability of Large Receiving End Power Grid with AC/DC Interconnection and Its Application

作　　者：刘育权[1,2] 杜兆斌[1] 李欣 陈曾[1] 张尧[1] 

机构地区：[1]华南理工大学电力学院,广东广州510640 [2]广州供电局有限公司,广东广州510620

出　　处：《广东电力》2013年第3期6-10,共5页Guangdong Electric Power

基　　金：国家自然科学基金重点项目资助(50337010)

摘　　要：随着负荷快速增长和电网建设受限制,交直流互联运行系统的受端电网面临电压不稳定的风险越来越大。根据静态电压稳定性分析成熟方法及工具,进一步发展交直流互联下大型受端电网静态电压稳定性研究框架,并应用于西电东送受端电网———广州电网,求出大型复杂电网静态电压稳定约束下的负荷裕度和电压裕度,并利用模态分析法判断电网薄弱节点,对电网的安全稳定运行提供有用的建议,同时也为其他交直流系统受端电网开展相关研究提供可选择的分析方法和计算工具。With rapid increase of load and power grid construction limitation, receiving end power grid with AC/DC inter- connection operational system is facing with risk of unstable voltage. According to mutual method and tool for static voltage stability quantitative analysis, this paper discusses research framework of static voltage stability of large receiving end power grid with AC/DC interconneetion and applies it in Guangdong power grid which is a kind of receiving end power grid for transmission of electricity from the western to the eastern. It determines load margin and voltage margin constrained by stat- ic voltage stability of large and complicated power grid and judges weak node of the power grid by using modal analysis meth- od. Meanwhile. it provides useful suggestions for safe and stable operation of the power grid and selective analysis method and calculation tools for related research of other receiving end power grid with AC/DC system.

关 键 词：交直流混联系统 静态电压稳定分析 模态分析法 弱区域 

分 类 号：TM721.3[电气工程—电力系统及自动化] TM723