The new method is verified by experiments on a prototype of dual-PWM three-level induction motor drive system.

双pwm三电平异步电动机调速系统样机上的实验结果证明该方法是有效的。

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This system is applying the three level mode and according the need of the designing object, has made realized of the technology of datum drive.

系统采用三层结构模型，应用对象设计方法、参数化驱动技术实现。

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A novel zero-voltage and zero-current switching (ZVZCS) three-level converter, and the drive circuit of the transistor were analyzed.

分析了一种新颖的零电压零电流(ZVZCS)开关之电平变换器，以及功率晶体管的驱动电路。

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Motherwell though were unable to subdue their First Division opponents and six minutes from half-time Neil Tarrant capped an amazing first half with a glorious 20-yard drive to once again level the sides at three each.

BBC: Ayr keep Cup dream alive