| 带SVC电力系统电压稳定二阶指标的计算与仿真 |
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| 引用本文： | 龙军,胡慧艳,庞敏,朱伟.带SVC电力系统电压稳定二阶指标的计算与仿真[J].广西大学学报(自然科学版),2008,33(2). |
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| 作者姓名： | 龙军 胡慧艳 庞敏 朱伟 |
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| 作者单位： | 1. 广西大学,电气工程学院,广西,南宁,530004
2. 东南大学,电气工程学院,南京,210096 |
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| 基金项目： | 国家自然科学基金项目
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国家863高技术基金项目
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广西壮族自治区研究生教育创新计划项目 |
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| 摘 要： | 通过对系统节点无功网损灵敏度指标(RLSI)进行排列,迅速准确判断系统的薄弱节点,在薄弱节点安装静止无功补偿器(SVC),可较好地降低灵敏度,提高电压稳定水平;通过对无功网损灵敏度进行二阶改造,克服了原指标的非线性,能较好地确定负荷裕度,通过对WSCC3机9节点系统进行仿真计算,分析对比SVC安装前后的电压稳定指标,验证了安装SVC后系统无功网损灵敏度及其二阶指标确实得到了改善,负荷裕度得到较准确的预报.
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| 关 键 词： | 静止无功补偿器 无功网损灵敏度指标 二阶电压指标 |
Voltage stability second-order index calculation and simulation of power system with SVC |
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| LONG Jun,HU Hui-yan,PANG Min,ZHU Wei.Voltage stability second-order index calculation and simulation of power system with SVC[J].Journal of Guangxi University(Natural Science Edition),2008,33(2). |
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| Authors: | LONG Jun HU Hui-yan PANG Min ZHU Wei |
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| Institution: | LONG Jun1,HU Hui-yan1,PANG Min1,ZHU Wei2(1.College of Electrical Engineering,Guangxi University,Nanning 530004,China,2.Department of Electrical Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | Ranking sensitivity index of reactive network loss can judge the weak node quickly in the system.Static var compensator(SVC) is installed at the weak node,which can decrease sensitivity and improve voltage stability.Based on RLSI,the paper gives second-order transformation,which overcomes nonlinear property of original index and determines load margin better.The paper analyses voltage stability index of pre and post installation by simulating WSCC 9-bus system.The simulation results demonstrate that RLSI an... |
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| Keywords: | static var compensator(SVC) reactive loss sensitivity index(RLSI) second-order performance index(SOPI) |
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