期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 44, 期 35, 页码 19395-19404出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.04.013
关键词
DC microgrid; Energy management strategy; Equivalent hydrogen consumption minimum strategy; MPPT-droop dual-mode control droop control
资金
- National Natural Science Foundation of China [61473238, 51407146]
- Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University [D-YB201704]
- Guangdong Natural Science Foundation of China [2015A030313853]
With the fast development of DC Microgrid (MG) technology, its operating economy and reliability are getting more and more concern. The traditional distributed control method is aimed at power balance and system stability, and is difficult to meet the requirement of energy management system for multi-source hybrid DC MG. This paper provides a two level energy management strategy for PV-fuel cell-battery-based DC MG, which is divided into device control level and system control level. At the device control level, the distributed control methods based on MPPT-droop dual-mode control and droop control are proposed to enhance system reliability; at the system control level, the equivalent consumption minimization strategy (ECMS) is used to distribute system net power between battery pack and fuel cell system. A lab-scale DC microgrid platform is developed to verify the proposed energy management strategy in this paper. Moreover, the analysis and compare of the results show that the proposed two-level energy management strategy can achieve lower equivalent hydrogen consumption than classical PI control and state machine control method. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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