Hybrid non-linear state estimation with voltage phasor measurements

被引：0
作者：
Qin, Xiaohui [1 ]
Bi, Tianshu [1 ]
Yang, Qixun [1 ]
机构：
[1] N China Elect Power Univ, Minist Educ, Key Lab Power Syst Protect & Dynam Secur Monitori, Beijing 102206, Peoples R China
来源：
2007 IEEE POWER ENGINEERING SOCIETY GENERAL MEETING, VOLS 1-10 | 2007年
关键词：
state estimation; voltage phasor measurement; measurement transforming; power system;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a new method of hybrid non-linear state estimation with PMU is proposed. Firstly, the voltage phasor measurements are transformed into indirect equivalent branch current measurements, with which the conventional state estimator takes the impact of PMU into consideration. Secondly, the indirect measurement errors caused by the measurement transforming are analyzed and calculated in detail. Thirdly, the accuracy of hybrid estimator is analyzed in the paper. The simulation results show that the proposed method improves the accuracy of estimator and the convergence speed also.
引用
收藏
页码：2249 / +
页数：3
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