Delay-dependent Robust Stability Analysis of Power Systems with PID Controller*

中国电气工程学报（英文） ›› 2019, Vol. 5 ›› Issue (2): 79-86.

• 论文 • 上一篇

出版日期:2019-06-20 发布日期:1900-01-01
通讯作者: Supported by National Natural Science Foundation of China (61703153) and Research and Innovation Foundation for Graduate Students of Hunan University of Technology (CX1932).

Delay-dependent Robust Stability Analysis of Power Systems with PID Controller^*

Li Shen, Huiqin Xiao^*

School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China

Online:2019-06-20 Published:1900-01-01
About author:Li Shen received a B.Sc. degree in thermal energy and power engineering from Hohai University, Nanjing, China, in 2014. He is an intermediate engineer. He is currently working toward his Master’s degree in electrical engineering at the School of Electrical and Information Engineering of Hunan University of Technology, Zhuzhou, China. His recent research interests include robust control and time-delay power system stability.
Supported by:
xiaohq_610@126.com

摘要/Abstract

Abstract: This study examines the robust stability of a power system, which is based on proportional-integral-derivative load frequency control and involves uncertain parameters and time delays. The model of the system is firstly established, following which the system is transformed into a closed-loop system with feedback control. On this basis, a new augmented Lyapunov-Krasovskii (LK) functional is established for using the new Bessel-Legendre inequality to estimate the derivative of the functional, which can provide a maximum lower bound. A stability criterion is then derived by employing the LK functional and Bessel-Legendre inequality. Finally, numerical examples are used to demonstrate the validity and superiority of the proposed method.

Key words: Power systems, time delay systems, load frequency control, PID control, robust stability

. [J]. 中国电气工程学报（英文）, 2019, 5(2): 79-86.

Li Shen, Huiqin Xiao. Delay-dependent Robust Stability Analysis of Power Systems with PID Controller^*[J]. Chinese Journal of Electrical Engineering, 2019, 5(2): 79-86.

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Huiqin Xiao received a B.Sc. degree, in automation from Hunan University of Technology, Zhuzhou, China, in2000, an M.Sc. degree in control theory and control engineering, and a Ph.D. degree in control science and engineering from Central South University, Changsha, China, in 2006 and 2015, respectively. Since 2000, she has been with the Department of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou, China, where she is currently an associate professor of automatic control engineering. Her current research interests are time-delay systems, nonlinear control systems, and networked control systems.

Delay-dependent Robust Stability Analysis of Power Systems with PID Controller^*

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