Novel Distributed Optimal Control of Battery Energy Storage System in an Islanded Microgrid with Fast Frequency Recovery

Xiao Qi, Yan Bai, Huanhuan Luo, Yiqing Zhang, Guiping Zhou and Zhonghua Wei
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Xiao Qi: School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
Yan Bai: School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
Huanhuan Luo: State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110004, China
Yiqing Zhang: Synergy Innovation Center for Energy Economics of Shandong, Shandong Institute of Business and Technology, Yantai 264005, China
Guiping Zhou: State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110004, China
Zhonghua Wei: State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110004, China

Energies, 2018, vol. 11, issue 8, 1-18

Abstract: Highly intermittent renewable energy sources pose new challenges to microgrid operation and control. Thus, many distributed control strategies have been proposed to solve this problem. However, for most previous studies, the system frequency fluctuation can be further controlled on the basis of the optimal control strategy. This paper proposes a novel distributed optimal control strategy of a battery energy storage system in an islanded microgrid to provide desired optimal control performance and fast frequency recovery. The proposed control strategy is implemented through a multi-agent system based on consensus algorithm, which only requires information collected through a local communication network. Furthermore, the measurement of supply–demand mismatch is replaced by the control signal obtained from a supplementary controller with the improved linear active disturbance rejection control algorithm. The stability of microgrid frequency can be greatly enhanced through this improvement. Finally, the validity of proposed method is demonstrated by various case studies which are given in this paper.

Keywords: distributed optimal control; islanded microgrid; battery energy storage system; linear active disturbance rejection control; frequency recovery (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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