Robust nonlinear coordinated generator excitation and SVC control for power systems

被引:52
作者
Wang, YY [1 ]
Tan, YL [1 ]
Guo, GX [1 ]
机构
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
关键词
generator excitation; SVC controller; robust nonlinear control;
D O I
10.1016/S0142-0615(99)00049-6
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 [电气工程]; 0809 [电子科学与技术];
摘要
A robust nonlinear coordinated generator excitation and static var compensator (SVC) controller is proposed to enhance the transient stability of power systems. The SVC is located at the midpoint of the transmission Line in a power system. A nonlinear feedback law for the generator is found which linearizes and decouples the power system model. Robust nonlinear control theory is employed to design the coordinated controller, which consists of two controllers, a generator excitation controller and an SVC controller. The proposed coordinated controller is designed based on local measurements. The design of the resulting controllers is independent of the operating point. Simulation results show that the proposed controller can enhance the transient stability of the power system under a large sudden fault, which may occur at the generator bus terminal. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:187 / 195
页数:9
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