Global control with application to bifurcating power systems

被引:5
作者
Shahrestani, SA
Hill, DJ
机构
[1] Univ Western Sydney Nepean, Sch Mechatron Comp & Elect Engn, Kingswood, NSW 2747, Australia
[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
关键词
bifurcation; nonlinear systems; nonlinear feedback control; hierarchical control; power system control; power system dynamic stability; voltage control;
D O I
10.1016/S0167-6911(00)00047-5
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 multilevel nonlinear control scheme that is capable of system control over wide ranges of operating conditions is proposed. The first control level confines the system operation to some reference segments in its state space. Each reference segment is further subdivided using the bifurcation analysis for establishing the bounds of the state space of the system with different control requirements. The principles of global control lead to a hierarchical control structure which combines regional (linear or nonlinear) controllers smoothly. The scheme is illustrated for control of a power system known to have diverse dynamical behavior. The control will accomplish desired steady-state (fixed point or small oscillation) operation of the power system for a wide range of loading levels. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:145 / 155
页数:11
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