级联型变频器在高压大功率电机软启动中的应用

摘要

In order to solves the problems which hard to achieve in the soft-start technology of high-voltage high-power motor,A soft-start application which is base on a unit cascade-type high-voltage inverter is introduced.Take advantage of the characteristics of the high-voltage high-power inverter is used as high-voltage high-power motor soft starter which making highvoltage high-power motor can have a smooth,non-impact,large torque start.%为了解决高压大功率电机软启动技术实现难的问题,文中介绍一种基于单元级联型高压变频器的电机软起动应用方法,利用高压大功率变频器的特点,用其作为高压大功率电机的软启动器,使得高压大功率电机能够平稳、无冲击、大转矩启动.