基于变流器的能量回馈装置设计实现

Design and Implementation of Energy Feedback Device Based on Converter

为了对城轨列车再生制动能量回馈系统的功能及系统可靠性进行验证,阐述了能馈变流器数学模型、双闭环控制策略及SVPWM调制模式,进行仿真及现场带车试验。仿真及试验结果表明:该方案能够很好地稳定直流母线电压,保证车辆的安全运行,能可靠、稳定地实现制动能量回馈功能,为车辆运行提供充足的能量,回馈的交流电能质量良好。

In order to verify the function and system reliability of the urban rail train regenerative braking energy feedback system,the mathematical model of the energy-feeding converter,the double closed-loop control strategy and the SVPWM modulation mode are expounded,and the simulation and on-site driving test are carried out.The simulation and test results show that the scheme can stabilize the DC bus voltage well,ensure the safe operation of the vehicle,reliably and stably realize the braking energy feedback function,provide sufficient energy for the vehicle operation,and the feedback AC power quality is good.