【摘 要】
：
In order to analyze power system stability in environment of WAMS(wide area measurement system),a new steady state stability model with time-varying delay was p
【机 构】
：
School of Information Science and Engineering
【基金项目】
：
the Doctor Subject Foundation of China;国家自然科学基金;教育部新世纪优秀人才支持计划;the Natural Science Foundation of Hunan Province,China
论文部分内容阅读
In order to analyze power system stability in environment of WAMS(wide area measurement system),a new steady state stability model with time-varying delay was proposed for power system.The factors of exciter and power system stabilizer with delay were introduced into analytical model.To decrease conservativeness of stability analysis,an improved Lyapunov-Krasovskii functional was constructed,and then a new delay-dependent steady state stability criterion for power system,which overcomes the disadvantages of eigenvalue computation method,was derived.The proposed model and criterion were tested on synchronousmachine infinite-bus power system.The test results demonstrate that Lyapunov-Krasovskii functional based power system stability analysis method is applicable and effective in the analysis of time delay power system stability.
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