未来应对变频装置输出波形对电动机绝缘冲击程度进行定量研究.确定电动机的绝缘水平,从而合理确定设备成本和性能之间的平衡。国内滚切式双边剪的装备水平,传动装置相当一部分采用直流传动,但直流电动机存在需要定期更换电刷的特点,增加了维护量。因此近年建造的双边剪开始采用交流传动,为了对滚切式双边交流变频传动系统的设计 In the future, we should quantitatively study the impact of the output waveform of the inverter on the insulation of the motor to determine the insulation level of the motor so as to reasonably determine the balance between the equipment cost and the performance. Domestic rolling type bilateral shear equipment level, a considerable part of the transmission device using DC drive, but the DC motor there is a need to regularly replace the brush features, an increase of maintenance. Therefore, the construction of bilateral scissors in recent years began to use AC drive, in order to roll-type bilateral AC inverter drive system design