Robust load-frequency control for uncertain nonlinear power systems: A fuzzy logic approach

被引：90

作者：

Lee, Ho Jae

Park, Jin Bae ^{[1
]}

Joo, Young Hoon

机构：

[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea

[2] Inha Univ, Dept Elect Engn, Inchon 402751, South Korea

[3] Kunsan Natl Univ, Sch Elect & Informat Engn, Kunsan 573701, Chonbuk, South Korea

来源：

INFORMATION SCIENCES | 2006年 / 176卷 / 23期

关键词：

load-frequency control; fuzzy-model-based control; valve position limits; parametric uncertainties; uniformly ultimately boundedness;

D O I：

10.1016/j.ins.2006.01.003

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A new robust load-frequency control (LFC) methodology is proposed for controlling uncertain nonlinear power systems. Critical nonlinearity in the power system-the valve position limit on the governor, and the parametric uncertainty are concerned. The Takagi-Sugeno fuzzy model of the power system under consideration is first constructed to design the robust fuzzy-model-based LFC. Sufficient conditions for the robust asymptotic convergence of the frequency deviation are then provided in terms of linear matrix inequalities. Boundedness of the other system variables is also studied to ensure justifiable grounds for use of the proposed LFC method. Simulation results convincingly validate the effectiveness of the novel LFC design scheme and the theoretical discussions, which give a positive answer to the quality control of the electric energy. (C) 2006 Elsevier Inc. All rights reserved.

引用

页码：3520 / 3537

页数：18

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