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Overview of AC Microgrid Controls with Inverter-Interfaced Generations

School of Engineering & Information Technology, The University of New South Wales, Canberra, ACT 2610, Australia
Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield S1 1WB, UK
Department of Engineering, Macquarie University, Sydney, NSW 2109, Australia
Author to whom correspondence should be addressed.
Energies 2017, 10(9), 1300;
Received: 18 July 2017 / Revised: 24 August 2017 / Accepted: 24 August 2017 / Published: 30 August 2017
Distributed generation (DG) is one of the key components of the emerging microgrid concept that enables renewable energy integration in a distribution network. In DG unit operation, inverters play a vital role in interfacing energy sources with the grid utility. An effective interfacing can successfully be accomplished by operating inverters with effective control techniques. This paper reviews and categorises different control methods (voltage and primary) for improving microgrid power quality, stability and power sharing approaches. In addition, the specific characteristics of microgrids are summarised to distinguish from distribution network control. Moreover, various control approaches including inner-loop controls and primary controls are compared according to their relative advantages and disadvantages. Finally, future research trends for microgrid control are discussed pointing out the research opportunities. This review paper will be a good basis for researchers working in microgrids and for industry to implement the ongoing research improvement in real systems. View Full-Text
Keywords: microgrid; voltage control; primary control; inverter control microgrid; voltage control; primary control; inverter control
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Hossain, M.A.; Pota, H.R.; Issa, W.; Hossain, M.J. Overview of AC Microgrid Controls with Inverter-Interfaced Generations. Energies 2017, 10, 1300.

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