| 引用本文: | 李国庆,姜 涛,徐秋蒙,陈厚合,贾宏杰.基于局部电压稳定指标的裕度灵敏度分析及应用[J].电力自动化设备,2012,32(4):0 |
| LI Guoqing,JIANG Tao,XU Qiumeng,CHEN Houhe,JIA Hongjie.Sensitivity analysis based on local voltage stability margin and its application[J].Electric Power Automation Equipment,2012,32(4):0 |
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| 摘要: |
| 提出一种基于局部电压稳定指标的裕度灵敏度分析新方法。以局部电压稳定指标为基础推导出负荷节点电压稳定裕度，该裕度具有确定的上、下界，且不受负荷增长方式影响；利用负荷节点电压稳定裕度有效识别了系统电压弱节点和弱节点集合；定义局部电压稳定指标的裕度灵敏度，确定与弱节点集合强相关的负荷节点，分析弱节点集合邻域节点无功波动对弱节点集合电压影响程度；最后将所提方法应用于系统无功补偿装置配置中，典型系统的仿真结果证明了所提方法的可行性和有效性。 |
| 关键词: 电压控制 稳定性 局部电压稳定指标 电压稳定裕度 灵敏度分析 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（５０９７７００９） |
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| Sensitivity analysis based on local voltage stability margin and its application |
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LI Guoqing1, JIANG Tao2, XU Qiumeng3, CHEN Houhe1, JIA Hongjie4
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1.School of Electrical Engineering，Northeast China Dianli University，Jilin 132012，China;2.Key Laboratory of Smart Grid of Ministry of Education，Tianjin University，Tianjin 300072，China;3.School of Electrical and Electronics Engineering，Huazhong University of Science and Technology，Wuhan 430074，China;4.Key Laboratory of Smart Grid of Ministry of Education，Tianjin University，Tianjin 300072
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| Abstract: |
| A method of margin sensitivity analysis for local voltage stability index is presented. The voltage stability margin of load node is deduced based on local voltage stability index to identify VWN（Voltage Weak Node） and VWNS（Voltage Weak Node Set），which has fixed upper and lower bounds，not affected by the mode of load growth. The margin sensitivity of local voltage stability index is defined to determine the load nodes，which are strongly correlating with the VWNS，and the effect of their reactive power fluctuation on the voltage of VWNS is analyzed. The introduced method is applied to the reactive power compensation device and the simulative results for the IEEE 14 -bus test system show its feasibility and effectiveness. |
| Key words: voltage control stability local voltage stability index voltage stability margin sensitivity analysis |
