Fully-distributed Load Frequency Control Strategy in an Islanded Microgrid Considering Plug-In Electric Vehicles

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 6, 1-18

Abstract: With large-scale integration of electric vehicles, this paper investigates the load frequency control problem in an islanded microgrid with plug-in electric vehicles (PEVs), which can be regarded as mobile battery energy storages to provide a valuable contribution to frequency regulation. A novel fully-distributed control strategy is proposed to achieve fast frequency regulation of islanded microgrids and effective coordination control of distributed energy sources. Firstly, distributed control based on an improved linear active disturbance rejection algorithm is realized through a multi-agent system, and it greatly enhances the anti-disturbance capability of the microgrid. Then, in order to guarantee the effectiveness of PEVs in frequency regulation, PEVs are controlled following the controllable power rate (CPR) calculated from the consensus-based multi-agent system. Furthermore, the system control construction in this paper is well designed to avoid the negative effects caused by system communication time delay. Finally, numerical simulations under different disturbances are carried out to demonstrate the effectiveness of the proposed control strategy in comparison with other previous control strategies.

Keywords: islanded microgrid; load frequency control; fully-distributed control; linear active disturbance rejection algorithm; plug-in electric vehicles (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 (6)

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