A new approach to the design of robust load-frequency controller for large scale power systems

被引:84
作者
Ray, G [1 ]
Prasad, AN [1 ]
Prasad, GD [1 ]
机构
[1] Indian Inst Technol, Dept Elect Engn, Kharagpur 721302, W Bengal, India
关键词
load frequency control; uncertain systems; Riccati-equation; Lyapunov stability; matching condition;
D O I
10.1016/S0378-7796(98)00125-4
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
A new method is presented for derivation of a robust controller for the load frequency controller of interconnected power systems with uncertain parameters. A combination of 'Matching conditions' and Lyapunov stability theory is adopted to implement a robust stabilizing controller. The stability analysis of the closed-loop interconnected systems for all admissible uncertainties is considered. The application of the proposed robust control scheme is considered through simulation studies of two-area power system model. Performance robustness of the proposed scheme is compared with the recent work of Wang et al. (1993, IEE Proc. C Vol. 140, pp. 11-16), and found to be very good. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:13 / 22
页数:10
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