| 考虑多时段量测随机误差的变压器参数抗差估计方法 |
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| 引用本文： | 陈俊,颜伟,卢建刚,李世明,李钦,赵雪骞.考虑多时段量测随机误差的变压器参数抗差估计方法[J].电力系统自动化,2011,35(2):28-33. |
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| 作者姓名： | 陈俊 颜伟 卢建刚 李世明 李钦 赵雪骞 |
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| 作者单位： | 1. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆市,400030
2. 广东电网公司电力调度通信中心,广东省广州市,510600 |
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| 基金项目： | “输配电装备及系统安全与新技术”国家重点实验室自主研究项目（2007DA10512710204） |
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| 摘 要： | 针对参数估计值受量测误差影响而随机变化的问题,基于三绕组变压器三侧的相量测量单元(PMU)或数据采集与监控(SCADA)系统多时段量测信息,提出了变压器电抗参数的抗差估计方法.首先,以变压器三侧的支路电流向量、中性点电压及电抗参数为状态变量,建立三绕组变压器的多时段PMU或SCADA量测方程及对应的增广最小二乘电抗参数...
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| 关 键 词： | 三绕组变压器 电抗参数 量测随机误差 抗差估计 最小二乘 |
| 收稿时间： | 4/11/2010 9:26:11 PM |
| 修稿时间： | 2011/1/10 0:00:00 |
A Robust Transformer Parameter Estimation Method Considering Multi-period Measurement Random Errors |
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| CHEN Jun,YAN Wei,LU Jiangang,LI Shiming,LI Qin,ZHAO Xueqian.A Robust Transformer Parameter Estimation Method Considering Multi-period Measurement Random Errors[J].Automation of Electric Power Systems,2011,35(2):28-33. |
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| Authors: | CHEN Jun YAN Wei LU Jiangang LI Shiming LI Qin ZHAO Xueqian |
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| Affiliation: | CHEN Jun1,YAN Wei1,LU Jiangang2,LI Shiming1,LI Qin2,ZHAO Xueqian1(1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400030,China,2.Guangdong Electric Power Dispatching Center,Guangzhou 510600,China) |
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| Abstract: | Considering the problem of randomly changing estimated parameter values with the impact of measurement errors,a robust method for transformer reactance estimation is presented based on phasor measurement unit(PMU) or supervisory control and data acquisition(SCADA) system multi-period measurement information of three-winding transformer at three sides.Firstly,the transformer three sides' branch current phasor,neutral point voltage and reactance are regarded as state variables,the paper establishes the three-... |
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| Keywords: | three-winding transformer reactance parameter measurement random errors robust estimation least squares |
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