12脉波逆变器快速变压变频控制新算法

A Novel Algorithm of Rapid Variable Voltage and Variable Frequency Control for 12-pulse Inverter

提出了一种可实现快速变压变频的新型12脉波逆变器控制算法,以避免目前地铁辅助变流器采用三分频单边调节PWM控制方式进行相位调节时所引起的桥臂电流畸变和电压幅值调节较缓慢的问题。试验结果验证了该方法的有效性。

It presents a novel algorithm of 12-pulse inverter which can achieve rapid variable voltage and variable frequency control. With this method, the disadvantages can be avoided, which caused by using the original algorithm method in current metro auxiliary inverter such as leg-current distortion by phase adjustment and slow voltage amplitude adjustment. Test results show the validity of this method.