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Fast controller for a unity-power-factor PWM rectifier
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DOI：10.1109/63.484410.png)
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摘要
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This paper presents an analog implementation of a fast controller for a unity-power-factor (UPF) PWM rectifier, The best settling times of many popular controllers for this type of converter are on the order of a few line cycles, corresponding to bandwidths under 20 Hz [1]. The fast controller demonstrated in this paper can exercise control action at a rate comparable to the switching frequency rather than the line frequency. In order to accomplish this while maintaining unity power factor during steady-state operation, the fast controller employs a ripple-feedback cancellation scheme.
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