控制系统采用的是电流型PWM控制方式，能够实现高品质的恒功率能量回馈。
The control system adopts current PWM control mode, and high quality energy feedback with constant power could be accomplished.
本文提出了电流型逆变器-感应电动机变频调速系统中电机驱动恒功率负载时，系统以最大效率运行的节能控制方式。
This paper proposes an energy saving control mode for current source inverter(CSI) induction motor drive system with the motor driving a constant power load.
本文提出恒频采样电流跟踪型PWM方式，并对其开关策略进行了理论分析。
The fixed frequency sample PWM method is put forward in this paper together with the theoretical analysis about their switch strategy.
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