南方电网受端系统电源支撑能力的灵敏度分析  

Research on the sensitivity analysis of supply support in China South Power Grids

作　　者：钟庆[1] 张尧[1] 赵杰 张建设 

机构地区：[1]华南理工大学电力学院,广东广州510640 [2]南方电网技术研究中心,广东广州510620

出　　处：《中国电力》2007年第1期32-35,共4页Electric Power

基　　金：国家自然科学基金资助项目(50337010);高等学校博士学科点专项科研基金资助项目(20020561004);华南理工大学自然科学青年基金资助项目(5050390)

摘　　要：受端系统电源支撑能力关系到系统安全稳定运行,尤其是电压稳定。广东电网作为南方电网的重要受端系统,其负荷约占南方电网全部负荷的70%,远距离输送电能到广东,必须提高电源支撑能力,保障系统的安全稳定性。对南方电网的多种运行方式进行仿真,找出受端系统的薄弱环节,通过灵敏度的比较,选取灵敏度最大的点位为支撑点,分析了其支撑效果并与其他支撑点的支撑效果进行了比较。结果表明在灵敏度最高的地点进行电源支撑,支撑效果最明显;能有效提高负荷地区特别是电压弱区域的电压水平,从而提高系统的电压稳定裕度。Supply support in receiving system can improve the stability of the system, especial the voltage stability. Guangdong Power Grid is the important receiving system in the China Southern Power Grid （the CSG）, whose load is 70% of the CSG. The supply support should be applied to improve the stability. In this paper, lots of operation schemes were simulated. The weak nodes were shown by the voltage sensitivity index, which was infected by many plants. The location of support can be achieved by the comparison of the voltage sensitivity where the impact is largest. The results show that the voltages on both weak buses and load buses increase and the margin of voltage stability is enhanced.

关 键 词：电压稳定 灵敏度分析 电压支撑 

分 类 号：TM711[电气工程—电力系统及自动化]