Further Improvement on Delay-Dependent Load Frequency Control of Power Systems via Truncated B-L Inequality

Feisheng Yang, Jing He, Quan Pan

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85 引用 (Scopus)

摘要

In this paper, a new method is put forward for the closed-loop stability analysis of PI-type load frequency control (LFC) scheme with interval time-varying delay. Improved delay-dependent conditions in terms of linear matrix inequalities for single-area and multi-area LFC systems are deduced by the proposed augmented Lyapunov-Krasovski (L-K) functional. Less conservativeness of our main results is due to an integral inequality called truncated second-order Bessel-Legendre (B-L) inequality, which can produce tighter bounds than Wirtinger-based inequality that encompasses Jensen inequality. Finally, the two-area interconnected power system based on Matlab/Simulink is provided to show the effectiveness and superiority of the obtained results.

源语言英语
文章编号8318668
页(从-至)5062-5071
页数10
期刊IEEE Transactions on Power Systems
33
5
DOI
出版状态已出版 - 9月 2018

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