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Controlling chaos in power system based on finite-time stability theory |
Zhao Hui(赵辉)a), Ma Ya-Jun(马亚军)a)†, Liu Si-Jia(刘思佳)a), Gao Shi-Gen(高士根)b), and Zhong Dan(钟丹) c) |
a Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems, Tianjin University of Technology, Tianjin 300384, China; b School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China; c School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China |
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Abstract Recent investigations show that a power system is a highly nonlinear system and can exhibit chaotic behaviour leading to a voltage collapse, which severely threatens the secure and stable operation of the power system. Based on the finite-time stability theory, two control strategies are presented to achieve finite-time chaos control. In addition, the problem of how to stabilize an unstable nonzero equilibrium point in a finite time is solved by coordinate transformation for the first time. Numerical simulations are presented to demonstrate the effectiveness and the robustness of the proposed scheme. The research in this paper may help to maintain the secure operation of power systems.
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Received: 11 January 2011
Revised: 30 June 2011
Accepted manuscript online:
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PACS:
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05.45.-a
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(Nonlinear dynamics and chaos)
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Fund: Project supported by the National High Technology Research and Development Program of China (Grant No. 2007AA041401), Tianjin Natural Science Foundation, China (Grant Nos. 08JCZDJC18600 and 09JCZDJC23900), and the University Science and Technology Development Foundation of Tianjin City, China (Grant No. 2006ZD32). |
Cite this article:
Zhao Hui(赵辉), Ma Ya-Jun(马亚军), Liu Si-Jia(刘思佳), Gao Shi-Gen(高士根), and Zhong Dan(钟丹) Controlling chaos in power system based on finite-time stability theory 2011 Chin. Phys. B 20 120501
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