| 引用本文: | 刘怀东,张江红,刘沛龙,孟宪朋,石世锋,牛 威,满旭睿.基于改进解析法的小范围动态安全域搜索方法[J].电力自动化设备,2012,32(2): |
| LIU Huaidong,ZHANG Jianghong,LIU Peilong,MENG Xianpeng,SHI Shifeng,NIU Wei,MAN Xurui.Small-range search of DSR based on improved analytical method[J].Electric Power Automation Equipment,2012,32(2): |
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| 摘要: |
| 由于目前动态安全域搜索方法用于概率安全指标计算结果会存在一定的误差，基于正态分布函数的快速衰减特性，提出了动态安全域（DSR）的小范围搜索方法。首先搜索DSR边界超平面的估计值，据此确定一个搜索的小范围，然后在这个小范围内利用改进解析法计算DSR边界的近似超平面。新英格兰10机39 节点系统上的算例误差为4.5 %，说明所提方法是合理可行的。 |
| 关键词: 电力系统 动态安全域 拟合法 改进解析法 概率安全性 计算 |
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| Small-range search of DSR based on improved analytical method |
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LIU Huaidong1, ZHANG Jianghong1, LIU Peilong2, MENG Xianpeng3, SHI Shifeng1, NIU Wei1, MAN Xurui1,4
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1.Key Laboratory of Power System Simulation and Control of Ministry of Education，Tianjin University，Tianjin 300072，China;2.School of Electronic and Information Engineering，Tianjin University，Tianjin 300072，China;3.Shijiazhuang Power Supply Company，Shijiazhuang 050051，China;4.Tianjin Electric Power Corporation，Tianjin 300010，China
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| Abstract: |
| The probabilistic insecurity index calculated by present DSR（Dynamic Security Region） search method has a certain deviation，for which，a small-range search method of DSR based on the rapid attenuation characteristic of standard normal distribution function is presented. The preliminary DSR boundary hyper-plane is estimated to determine a small search range，in which an approximate DSR boundary hyper-plane is calculated by the improved analytical method. The error of the calculated result for New England 10-generator 39-bus system is only 4.5 %，showing the proposed method reasonable and feasible. |
| Key words: electric power systems dynamic security region fitting method improved analytical method probabilistic security calculation |
