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基于根轨迹法的单相PWM整流器比例-谐振电流调节器设计

, PP. 251-256

Keywords: 单相PWM整流器,比例-谐振调节器,根轨迹法

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Abstract:

比例-谐振(PR)调节器可以实现单相PWM整流器的电流环无静差控制。传统的PR调节器整定方法是分别调整比例和谐振系数,在开关频率\采样频率很低时,电流环不容易稳定。本文在离散域中直接进行设计,用根轨迹法配置电流控制器的零点和增益,保证了电流环的稳定性,并且使电流控制具有良好的稳态和动态性能。仿真和实验结果验证了设计方法的有效性。

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