The invention provides a traction power supply system energy storage capacity determination method based on a comprehensive utilization rate. The traction power supply system energy storage capacity determination method comprises the following steps: S1, determining working conditions of a traction power supply system and charge states of an energy storage system under different working conditions; s2, determining the comprehensive utilization rate of regenerative braking energy of the traction power supply system under different working conditions and different capacity configurations; s3, the regenerative braking energy comprehensive utilization rate, the power of the energy storage system and the rated capacity of the energy storage system are fitted to form a curved surface, an inflection point of the curved surface is found out, and the capacity, corresponding to the inflection point, of the energy storage system is the optimal capacity; the capacity of the energy storage system is comprehensively determined based on multiple indexes such as the energy-saving effect of the traction substation, the regenerative braking energy recovery effect of the train and the charging and discharging utilization rate of the energy storage system, so that the capacity of the energy storage system can meet the requirements of a traction power supply system.
本发明提供的一种基于综合利用率的牵引供电系统储能容量确定方法,包括以下步骤:S1.确定牵引供电系统的工作工况以及在不同工作工况下的储能系统的荷电状态;S2.确定牵引供电系统在不同工作工况下以及不同容量配置下的再生制动能量综合利用率;S3.将再生制动能量综合利用率、储能系统的功率以及储能系统的额定容量进行拟合形成曲面,找出曲面的拐点,该拐点对应的储能系统的容量为最佳容量;基于牵引变电所节能效果、列车再生制动东能量回收效果以及储能系统充放电利用率多个指标综合确定储能系统的容量,使得储能系统的容量既能够满足牵引供电系统的需求。
Traction power supply system energy storage capacity determination method based on comprehensive utilization rate
基于综合利用率的牵引供电系统储能容量确定方法
2025-02-28
Patent
Electronic Resource
Chinese
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