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一些新型的交流传动机车取消了牵引变压器的辅助绕组,辅助电源系统从中间直流环节获取电源,在过电分相区时牵引电机工作在再生制动状态,反馈回能量为中间直流电路充电,从而实现对辅助绕组的不间断供电。本文通过对再生制动的分析和对反馈能量大小的计算,给出了一个不间断供电的方案,仿真结果也表明,本控制能够实现中间直流电压的恒定,及电分相区对辅助电源系统不间断供电。
Some new AC locomotives cancel the auxiliary winding of the traction transformer. The auxiliary power supply system obtains the power from the intermediate DC link. The traction motor operates in the regenerative braking state in the over-phase-separation zone and feeds back the energy to charge the intermediate DC circuit. Auxiliary windings to achieve uninterrupted power supply. In this paper, a program of uninterrupted power supply is given through the analysis of regenerative braking and the calculation of the amount of feedback energy. The simulation results also show that this control can achieve a constant DC voltage, and the electrical phase separation of the auxiliary power supply system Uninterrupted power supply.