城轨交通牵引供电系统参数与储能系统容量配置综合优化

doi:10.19595/j.cnki.1000-6753.tces.L80443

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Abstract The installation of stationarysupercapacitor energy storage systems in urban rail transit will effectively recover the regenerative braking energy of the trains and reduce the energy consumption of the system. The substations, powering/brake trains and energy storage systems(ESSs)conduct energy interactions in real time through traction networks, andconstitute a complex multi-energy coupling system. Therefore, in order to improve the overall energy efficiency and reduce investment costs, a synthetic optimization method for power system parameters and ESS capacity configuration is proposed in this paper. Firstly, the equivalent circuit modelsfor different train operation scenarios are established, and the influence of no-load voltageand the starting voltage of the braking resistor on the energy transmission efficiency and effective distance between the substations, trains and ESSsis analyzed; Secondly, a multi-objective optimization problem considering energy consumption and investment costis established, and the NSGA-II optimization algorithm is combined with the traction power flow calculation to solve the problem. Finally, a case study based on Beijing Metro Batong line is presented, and the pareto optimal solution is obtained with thesynthetic optimization method. Results show that in comparison with ESS-only optimization, the energy saving rate is effectively improved with the synthetic optimization.

Key words： Energy storage system capacity configuration synthetic optimization urban railway

Received: 30 June 2018 Published: 31 January 2019

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TK02

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	Zhu Feiqin
	Yang Zhongping
	Lin Fei
	XinYue

Cite this article:

Zhu Feiqin,Yang Zhongping,Lin Fei等. Synthetic Optimization of Traction Power Parameters and Energy Storage Systems in Urban Rail Transit[J]. Transactions of China Electrotechnical Society, 2019, 34(3): 579-588.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80443 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I3/579

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