An optimal energy management strategy with subsection bi-objective optimization dynamic programming for photovoltaic/battery/hydrogen hybrid energy system

Yigeng Huangfu, Chongyang Tian, Shengrong Zhuo, Liangcai Xu, Peng Li, Sheng Quan, Yonghui Zhang, Rui Ma

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Nowadays, the scheme of a stand-alone microgrid utilizing renewable energy is regarded as an effective approach to guarantee the power supply of an off-grid system. However, the intermittent nature of renewables brings new challenges to the determination of the optimal operation point for a hybrid energy system (HES). To address this issue, this paper proposes a subsection bi-objective optimization dynamic programming strategy for the HES consisting of photovoltaic, fuel cell, electrolyzer, hydrogen storage system, and battery bank. Within the proposed strategy, reasonable rule-based judgment is introduced to reduce the complexity of system control. Moreover, dynamic programming is selected to obtain the global optimal power distribution scheme. Meanwhile, a multi-objective genetic algorithm strategy is designed for comparative analysis. The results in two typical cases indicate the proposed strategy can improve photovoltaic utilization by 0.95% and 0.0003%, and fuel economy by nearly 50%.

Original languageEnglish
Pages (from-to)3154-3170
Number of pages17
JournalInternational Journal of Hydrogen Energy
Volume48
Issue number8
DOIs
StatePublished - 26 Jan 2023

Keywords

  • Dynamic programming
  • Energy management
  • Fuel economy
  • Stand-alone microgrid
  • Subsection bi-objective optimization

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