Distributed Control Strategy for Autonomous Operation of Hybrid AC/DC Microgrid

Jongbok Baek, Wooin Choi and Suyong Chae
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Jongbok Baek: Energy Efficiency Research Division, Korea Institute of Energy Research, Daejeon 34129, Korea
Wooin Choi: Samsung Electronics, Suwon 16677, Korea
Suyong Chae: Energy Efficiency Research Division, Korea Institute of Energy Research, Daejeon 34129, Korea

Energies, 2017, vol. 10, issue 3, 1-16

Abstract: This paper proposes a distributed control strategy that considers several source characteristics to achieve reliable and efficient operation of a hybrid ac/dc microgrid. The proposed control strategy has a two-level structure. The primary control layer is based on an adaptive droop method, which allows local controllers to operate autonomously and flexibly during disturbances such as fault, load variation, and environmental changes. For efficient distribution of power, a higher control layer adjusts voltage reference points based on optimized energy scheduling decisions. The proposed hybrid ac/dc microgrid is composed of converters and distributed generation units that include renewable energy sources (RESs) and energy storage systems (ESSs). The proposed control strategy is verified in various scenarios experimentally and by simulation.

Keywords: ac/dc hybrid microgrid; adaptive droop control; autonomous operation; distributed generation; energy management system (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: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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