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Review of Power Sharing Control Strategies for Islanding Operation of AC Microgrids

2015; Institute of Electrical and Electronics Engineers; Volume: 7; Issue: 1 Linguagem: Inglês

10.1109/tsg.2015.2434849

1949-3061

Hua Han, Xiaochao Hou, Jian Yang, Jifa Wu, Mei Su, Josep M. Guerrero,

Power Systems and Renewable Energy

Microgrid is a new concept for future energy distribution system that enables renewable energy integration. It generally consists of multiple distributed generators that are usually interfaced to the grid through power inverters. For the islanding operation of ac microgrids, two important tasks are to share the load demand among multiple parallel connected inverters proportionately, and maintain the voltage and frequency stabilities. This paper reviews and categorizes various approaches of power sharing control principles. Simultaneously, the control schemes are graphically illustrated. Moreover, various control approaches are compared in terms of their respective advantages and disadvantages. Finally, this paper presents the future trends.