Research on Control Strategy of Islanded Hybrid Microgrid Based on Hybrid Energy Storage

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Wang, Shudong^1 ; Qiu, Jinliang^1 ; Zhu, Liyang^1 ; Ding, Tin^1 ; Luai, Al-Madhehagi^1

College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, Gansu

730050, China^1

关键词: Control strategies;    Distributed control strategy;    High frequency components;    Hybrid energy storage;    Hybrid microgrid;    Power fluctuations;    Simulation model;    Stable operation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/5/052049/pdf
DOI  :  10.1088/1755-1315/199/5/052049

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to solve the power fluctuation and power balance problem in the AC / DC hybrid microgrid, a control strategy is proposed to dynamically adjust the output power of the bidirectional AC/DC converter connected to the AC and DC microgrid by detecting the DC voltage and the AC voltage frequency. The established method can be applied to different line impedances of AC power and load interconnections. In the hybrid energy storage, the droop control is used to automatically adjust the output power of the battery, and the supercapacitor quickly provides the high frequency component of the load power to reduce the impact caused by the load mutation on the battery and the bus voltage. Finally, a hybrid microgrid simulation model is built by using Matlab/Simulink. The simulation results show that the distributed control strategy can control the stable operation and voltage stability of the hybrid microgrid.