Frequency synchronization adaptive control for power grids under topological uncertainty |
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| Institution: | 1. School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China;2. School of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;1. School of Electronics Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea;2. Department of Control and Instrumentation Engineering, Pukyong National University, 45 Yongsoro, Namgu, Busan 48513, Republic of Korea;1. School of Automobile, Chang''an University, Xi''an, 710064, China;2. Lyles School of Civil Engineering, Purdue University, West Lafayette, IN, 47907, USA;1. Department of Electronics, Laboratory of Automation and Robotics, University of Mentouri Constantine 1, Rt. Ain Elbey, Constantine 25000, Algeria;2. Department of Electronics, Laboratory of Renewable Energy, University of Jijel, BP 98 Ouled Aissa, Jijel 18000, Algeria;1. Dalian University of Technology, Dalian, China;2. Central South University, Changsha, China;1. Department of Applied Mathematics, Bharathiar University, Coimbatore 641046, India;2. Department of Communications and Networks Engineering, Prince Sultan University, Saudi Arabia |
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| Abstract: | In this paper, an adaptive control strategy is proposed to address the synchronization issue for weakly damped generators under topological uncertainty. A singular perturbation analysis is then adopted for strongly damped generators and a compensation control scheme is subsequently given to maintain synchronization under topological changes. Theoretical proof is laid out for the validity of the proposed control scheme. Besides, a power sharing strategy is supplemented for strongly damped generators based on the designed controller. Finally, simulation studies are carried out to verify the effectiveness of the control strategies. Results show that synchronization can be swiftly restored even when the power grid suffers a fatal topological change. The power sharing property can be achieved under the given restriction with the proposed controller. |
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