Journal of System Simulation ›› 2021, Vol. 33 ›› Issue (3): 572-580.doi: 10.16182/j.issn1004731x.joss.19-0561

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Comparative Study of Energy Management Strategy Based on Value Loss of Tram Hybrid Power System

Guo Ai1, Chen Chao1, Shi Junjie2, Liu Zhengjie1, Chen Weirong1, Liang Jiayi1, Liu Nan2   

  1. 1. School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;
    2. CRRC Tangshan Co., Ltd., Tangshan 064000, China
  • Received:2019-10-25 Revised:2020-01-18 Online:2021-03-18 Published:2021-03-18

Abstract: In order to comprehensively evaluate the economy of fuel cell hybrid power system for tram and improve its durability, a value loss function based on the life of fuel cell and lithium battery in hybrid system is proposed. The demanded power in actual conditions is adopted and the value loss function is used to analyze the three energy policies including the state machine, power following, and minimum equivalent hydrogen consumption. The simulation results show that the value loss of state machine strategy is the smallest, and compared with power following and equivalent hydrogen consumption minimization strategies, this method reduces the value loss of the system by 11.0% and 6.3%, respectively.

Key words: fuel cell, hybrid power, energy management strategy, value loss, evaluation function

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