An energy-shaping approach to the design of excitation control of synchronous generators

被引:124
作者
Galaz, M
Ortega, R
Bazanella, AS
Stankovic, AM
机构
[1] Ecole Super Elect, Signaux & Syst Lab, CNRS, SUPELEC, F-91192 Gif Sur Yvette, France
[2] Univ Fed Rio Grande Sul, Dept Elect Engn, Porto Alegre, RS, Brazil
[3] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA
关键词
power systems stability; passivity-based control; nonlinear control; energy-shaping;
D O I
10.1016/S0005-1098(02)00177-2
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper we discuss the estimation of the domain of attraction of equilibria in power systems and propose a new passivity-based controller design methodology for excitation control of synchronous generators. The methodology goes beyond the widely popular damping injection (L-g V) schemes, to actually shape the total energy function via modification of the energy transfer between the mechanical and electrical components of the system. Applying the procedure it is shown that a, properly tuned, linear state feedback enlarges both the estimates and the actual domain of attraction, thus increasing critical clearing time for faults. This is illustrated in two case studies, including a benchmark comparison with the classical control scheme. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:111 / 119
页数:9
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