轨道交通货车轮轴余能智能收集储能供电系统研发

Research and Development of Intelligent Energy Collection and Energy Storage Power Supply System for Rail Transit Freight Car Axle

为使轨道交通货车轮轴具有更强的牵引能力、实现对电力储能的高效率利用,本文设计了轨道交通货车轮轴余能智能收集的储能供电系统。利用超级电容设备提供双向DC-DC变换器所需的传输电子供应量,再借助智能均流控制电路,对已收集储能量进行平均处理。在此基础上,建立轮轴负荷特性模型,通过离散傅里叶变换确定约束控制条件,实现对货车轮轴余能的智能收集控制。实验结果表明:与直流微网型供应系统相比,本文设计的系统可为轨道交通货车轮轴提供更强的牵引动力,在高效利用电力储能的同时,实现对货车轮轴余能的有效收集与处理。

In order to make the rail transit truck wheel and axle have stronger traction ability and realize the efficient utilization of electric energy storage,this paper designs the energy storage power supply system of rail transit truck wheel and axle intelligent collection of residual energy.The supercapacitor equipment is used to provide the transmission electronic supply required by the bidirectional DC-DC converter,and then the collected and stored energy is averaged with the help of the intelligent current-sharing control circuit.On this basis,the wheel and axle load characteristic model was established,and the constraint control conditions were determined by the discrete.Fourier transform,so as to realize the intelligent collection and control of the residual energy of the truck wheel and axle.The experimental results show that compared with the DC micro-grid supply system,the system designed in this paper can provide stronger traction force for the rail transit truck wheel and axle,and realize the effective collection and processing of the residual energy of the truck wheel and axle while efficiently utilizing the electric energy storage.