Lyapunov functions for multimachine power systems with dynamic loads

被引:53
作者
Davy, RJ [1 ]
Hiskens, IA [1 ]
机构
[1] UNIV NEWCASTLE,DEPT ELECT & COMP ENGN,CALLAGHAN,NSW 2308,AUSTRALIA
来源
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 1997年 / 44卷 / 09期
基金
澳大利亚研究理事会;
关键词
load dynamics; Lyapunov functions; power system stability;
D O I
10.1109/81.622983
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
This paper develops Lyapunov functions for power systems which have dynamic reactive power loads, These functions are extensions of earlier Lyapunov functions derived for structure preserving power system models having static loads, In order to obtain strict Lyapunov functions, the transient response of the dynamic load must have a logarithmic dependence on voltage. A Lyapunov function is initially generated using a ''first integral'' analysis. A Popov criterion analysis is then undertaken for comparison. The developed Lyapunov functions enable the investigation of the interaction between generator (angle) and load dynamics in multimachine power systems.
引用
收藏
页码:796 / 812
页数:17
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