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Energies 2017, 10(1), 136; doi:10.3390/en10010136

Energy Management Strategy Based on Multiple Operating States for a Photovoltaic/Fuel Cell/Energy Storage DC Microgrid

School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
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Author to whom correspondence should be addressed.
Academic Editor: Ying-Yi Hong
Received: 10 September 2016 / Revised: 2 January 2017 / Accepted: 13 January 2017 / Published: 21 January 2017
(This article belongs to the Special Issue Electric Power Systems Research 2017)
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Abstract

It is a great challenge for DC microgrids with stochastic renewable sources and volatility loads to achieve better operation performance. This study proposes an energy management strategy based on multiple operating states for a DC microgrid, which is comprised of a photovoltaic (PV) array, a proton exchange membrane fuel cell (PEMFC) system, and a battery bank. This proposed strategy can share the power properly and keep the bus voltage steady under different operating states (the state of charge (SOC) of the battery bank, loading conditions, and PV array output power). In addition, a microgrids test platform is established. In order to verify the effectiveness of the proposed energy management strategy, the strategy is implemented in a hardware system and experimentally tested under different operating states. The experimental results illustrate the good performance of the proposed control strategy for the DC microgrid under different scenarios of power generation and load demand. View Full-Text
Keywords: DC microgrid; energy management strategy; multiple operating states; photovoltaic (PV) array; proton exchange membrane fuel cell (PEMFC); battery bank DC microgrid; energy management strategy; multiple operating states; photovoltaic (PV) array; proton exchange membrane fuel cell (PEMFC); battery bank
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Han, Y.; Chen, W.; Li, Q. Energy Management Strategy Based on Multiple Operating States for a Photovoltaic/Fuel Cell/Energy Storage DC Microgrid. Energies 2017, 10, 136.

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