In the source commutation technique, a commutating Thyristor is turned off byforcing the DC link current to zero.
在来源换向技术， 一台换向的可控硅整流器被关闭当换向发生时，潮流是近似地恒定的除了山谷。
The paper presents a new PWM CSI using only one gate turn off switch and six thyristors. The converter uses active commutation to realize PWM in a conventional thyristor-based CSI.
该文提出一种采用一个门极可关断开关和六个晶闸管的新的PWM电流源逆变器，此电路通过有源换流来实现传统的晶闸管CSI的脉宽调制。
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