• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2020, Vol. 56 ›› Issue (24): 181-189.doi: 10.3901/JME.2020.24.181

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Optimal Parameter Matching of Hybrid Energy Storage System Based on NSGA-Ⅱ Algorithm for Energy Storage Type Tram

YANG Jibin1,2,3, XU Xiaohui1,2,3, PENG Yiqiang1,2,3, ZHANG Jiye4, SONG Pengyun4,5   

  1. 1. Key Laboratory of Fluid and Power Machinery of Ministry of Education, Xihua University, Chengdu 610039;
    2. Key Laboratory of Automobile Measurement and Control & Safety, Xihua University, Chengdu 610039;
    3. School of Automobile and Transportation, Xihua University, Chengdu 610039;
    4. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031;
    5. College of Electrical & Information Engineering, Southwest Minzu University, Chengdu 610041
  • Received:2020-03-01 Revised:2020-10-09 Online:2020-12-20 Published:2021-02-05

Abstract: In order to study the parameter matching problems of a tram powered by hybrid energy storage system which consists of a battery pack and an ultracapacitor pack, a parameter matching approach of hybrid energy storage system is proposed based on a multi-objective optimization algorithm. According to the dynamic performance requirement of the tram, a design of hybrid energy storage system' parameters is presented based on equivalent calculation approach. The multi-objective cost function is established by using the daily operating cost of the tram and performance degradation rate of battery as performance indicators. The optimization process of hybrid energy storage system with system simulation model in loop is designed by using NSGA-Ⅱalgorithm. Taking a round trip as operation requirement of the tram, the simulation results of different parameter matching of Pareto solution set and equivalent calculation approach are compared and analyzed in two different drive cycles. The simulation results indicate that the optimized result reduces the performance degradation rate of battery by at least 31.1%, compared with the parameter matching result of the hybrid energy storage system based on the equivalent calculation approach. Moreover, the reasonable configuration of hybrid energy storage system can effectively guarantee the high recovery rate of regenerative braking energy and the efficiency of the tram, and the longer distance between stations increases the configuration demand of the hybrid energy storage system.

Key words: tram, hybrid energy storage system, parameter matching, multi-objective optimization, NSGA-Ⅱ

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