| 一种具有量测校准功能的电力系统状态估计 |
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| 引用本文： | 吴琼,汪隆臻,刘文颖,杨以涵,赵川. 一种具有量测校准功能的电力系统状态估计[J]. 现代电力, 2007, 24(6): 1-5 |
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| 作者姓名： | 吴琼 汪隆臻 刘文颖 杨以涵 赵川 |
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| 作者单位： | 1. 华北电力大学,北京,102206
2. 云南电力公司调度通讯中心,云南昆明,650041 |
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| 摘 要： | 分析了电力量测中系统误差产生的原因、特点及其对状态估计结果的影响,指出由于系统误差的存在使得状态估计结果是有偏的。在此基础上,结合系统误差的特点,提出了一种基于参数辨识的量测校准方法,并最终形成了一种新的具有量测校准功能的电力系统状态估计,应用实例说明了该方法可以有效消除系统误差的影响,提高状态估计精度。
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| 关 键 词： | 状态估计 系统误差 参数估计 量测校准 |
| 文章编号： | 1007-2322(2007)06-0001-05 |
| 修稿时间： | 2007-06-04 |
State Estimation of Power System with Measurement calibration |
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| Wu Qiong,Wang Longzhen,Liu Wenying,Yang Yihan,Zhao Chuan. State Estimation of Power System with Measurement calibration[J]. Modern Electric Power, 2007, 24(6): 1-5 |
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| Authors: | Wu Qiong Wang Longzhen Liu Wenying Yang Yihan Zhao Chuan |
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| Abstract: | The cause,characteristics of system error in power system measurement and its influence on state estimation are analyzed.It is pointed out that the existence of system error makes state estimation result biased.Considering the property of systematic error,a measurement calibration method is presented and incorporated with the conventional estimation method.The practical example indicates that the proposed method can eliminate the influence of system error effectively and improve the precision of state estimation. |
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| Keywords: | state estimation systematic error parameter estimation measurement calibration |
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