A decentralized nonlinear feedback controller with prescribed degree of stability for damping power system oscillations

被引：32

作者：

Kumar, B. Kalyan ^{[1
]}

Singh, S. N. ^{[1
]}

Srivastava, S. C. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2007年 / 77卷 / 3-4期

关键词：

decentralized nonlinear feedback controller; power system oscillations; power system stabilizer; linear quadratic regulator;

D O I：

10.1016/j.epsr.2006.02.014

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：

Nonlinear feedback linearization techniques are being used for transforming nonlinear power system dynamics into closed loop systems, whose dynamics are linear over wide range of operating conditions. This facilitates use of linear techniques for designing feedback controllers to damp out oscillations. The advantage of using such feedback controllers is that they do not depend on the system operating conditions unlike the conventional controllers, for example a conventional power system stabilizer. A nonlinear feedback law is proposed in this work, which converts a nonlinear power system into closed loop decentralized linear time varying systems. A feedback controller has been designed using linear quadratic regulator with prescribed degree of stability to stabilize the decentralized linear time varying systems. The performance of the proposed method has been tested on a 16-machine, 68-bus system representing interconnected New England Test system (NETS) and New York Power System (NYPS). (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：204 / 211

页数：8

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