A fuzzy logic feed-forward current controller for PWM rectifiers

A. Dell'Aquila, Marco Liserre, L. Caponio, Carlo Cecati, A. Ometto
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引用次数: 8

Abstract

This paper proposer a new control method for PWM rectifiers. The main goal of the system is to obtain unity power factor, sinusoidal input currents and constant output voltage with a cheap design. The system chooses the switching patterns and their duty cycles on the basis of the output voltage error using a fuzzy logic feed-forward input currents controller. More in detail, it calculates the switching vector reference and determines the converter duty cycles pattern. The resulting controller is very simple and inexpensive and gives satisfactory performances.
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PWM整流器的模糊逻辑前馈电流控制器
本文提出了一种新的PWM整流器控制方法。该系统的主要目标是以低廉的设计成本获得统一的功率因数、正弦输入电流和恒定的输出电压。系统采用模糊逻辑前馈输入电流控制器,根据输出电压误差选择开关方式及其占空比。更详细地说,它计算开关矢量参考和确定变换器的占空比模式。所得到的控制器非常简单,价格低廉,性能令人满意。
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