A Regularized Method for Solving Ill-Conditioned Hybrid State Estimation Problem

被引：0
|
作者：
Mallik, Sanjeev Kumar [1 ]
Chakrabarti, S. [1 ]
Singh, S. N. [1 ]
机构：
[1] Indian Inst Technol, Kanpur 208016, Uttar Pradesh, India
来源：
2012 2ND INTERNATIONAL CONFERENCE ON POWER, CONTROL AND EMBEDDED SYSTEMS (ICPCES 2012) | 2012年
关键词：
Hybrid state estimation; Ill-conditioning; Regularization; PMU measurements; L-CURVE;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Numerical ill-conditioning is a frequently encountered problem in power system state estimation. In this paper, a regularization based method for solving ill-conditioned state estimation problems is proposed. The methodology is based on Tikhonov regularization, and the regularization parameter is selected by using L-curve method. The proposed state estimator is able to handle the numerical problems associated with the presence of highly accurate synchronized measurements along with less accurate conventional asynchronous measurements. The proposed method is analyzed and tested for IEEE 14-bus test system.
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页数：6
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