期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 44, 期 11, 页码 5507-5516出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.08.135
关键词
DC microgrid; Optimum design scheme; Hierarchical energy management; Equivalent consumption minimization strategy; Hardware-in-loop
资金
- National Natural Science Foundation of China [61473238]
- NEEC Open-end Fund of China [NEEC-2017-B01]
- Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University [D-YB201704]
This research presents an optimum design scheme and a hierarchical energy management strategy for an island PV/hydrogen/battery hybrid DC microgrid (MG). In order to efficiently utilize this DC MG, the optimum structure and sizing scheme are designed by HOMER pro (Hybrid Optimization of Multiple Energy Resources) software. The designed structure of hydrogen MG includes a PV generation, a battery as well as a hydrogen subsystem which composes a fuel cell (FC) system, an electrolyzes and hydrogen tank. To improve the robustness and economy of this DC MG, this study schedules a hierarchical energy management method, including the local control layer and the system control layer. In the local control layer, the subsystems in this DC MG are controlled based on their inherent operating characteristics. And the equivalent consumption minimization strategy (ECMS) is applied in the system control layer, the power flow between the battery and FC is allocated to minimum the fuel consumption. An island DC MG hardware-in-loop (HIL) Simulink platform is established by RT-LAB real-time simulator, and the simulation results are presented to validate the proposed energy management strategy. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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