Welcome to Francis Academic Press

Academic Journal of Computing & Information Science, 2020, 3(1); doi: 10.25236/AJCIS.2020.030105.

Research on Seamless Switching Method between Grid and Island


Zhang Mingli, Yu Changyong, Jiang Li, Zhu Heyan, Lu Tianqi, Sun Mingze

Corresponding Author:
Zhang Mingli

State Grid Liaoning Electric Power CO, LTD. Power Electric Research Institute, Shenyang, Liaoning110015, China


The seamless switching control strategy between grid-connected microgrid and island operation mode is an important factor to ensure its safe and stable operation. The new master-slave control strategy and the peer-to-peer control strategy are combined to control the switching process of the grid-connected mode of the micro-grid to the island mode. A microgrid simulation model combining photovoltaic cells and batteries was built on the DigSILENT/PowerFactory platform to verify the correctness of the proposed control strategy and ensure the stability of the active, reactive, voltage and frequency of the microgrid.


microgrid; photovoltaic and battery; PQ control; V/f control; Droop control

Cite This Paper

Zhang Mingli, Yu Changyong, Jiang Li, Zhu Heyan, Lu Tianqi, Sun Mingze. Research on Seamless Switching Method between Grid and Island. Academic Journal of Computing & Information Science (2020), Vol. 3, Issue 1: 39-45. https://doi.org/10.25236/AJCIS.2020.030105.


[1] Ding Ming, Zhang Yingyuan, Yan Meiqin. Key technologies in microgrid research [J]. Power Grid Technology, 2009, 33(11): 6 -11.
[2] IEEE. 1547. 2-2008 IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems [S]. NewYork: IEEE, 2008.
[3] UL. 1741—2010 Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources [S]. Chicago: UL, 2010.
[4] Wang Chengshan, Xiao Zhaoxia, Wang Shouxiang. Multi-loop feedback control strategy for DG inverter in microgrid [J]. Journal of Electrical Engineering, 2009, 24 (2): 100 -106.
[5] Lu Hongyi, Ying Xinlong, He Penteng. Micro-grid networking and island operation control methods [J]. Power System Protection and Control, 2009, 37(11): 28-31.
[6] Zhang Jianhua, Su Ling, Chen Yong, et al. Microgrid energy management and its control strategy [J]. Power Grid Technology, 2011, 35(7): 24 -29.
[7] Zheng Jinghong, Wang Yanting, Li Xingwang, et al. Microgrid smooth switching control method and strategy [J]. Automation of Electric Power Systems, 2011, 35(18): 17 - 24.
[8] Tao Xiaofeng. Research on control strategy of distributed complementary energy microgrid system [D]. Hefei: Hefei University of Technology, 2010.
[9] Li Xuguang. Modeling, simulation and operational characteristics analysis of microgrid [D]. Tianjin: Tianjin University, 2009.
[10] Lu Zongxiang, Wang Caixia, Yong Yong, et al. Summary of microgrid research [J]. Automation of Power Systems, 2007, 3l (19): 100-106.