In this paper, two control laws based respectively on hysteresis and pulse-width-modulation (PWM) techniques are applied on a unity-power-factor current-injection-based three-phase rectifier. A theoretical analysis is carried out in order to evaluate the performance of each technique, in terms of the line current ripple and the switching frequency. The control detuning problem, which contributes mainly to the line current distortion, is also considered. In order to highlight the comparative study, numerical simulation is accomplished using the Power System Blockset tool of Matlab/Simulink.
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机译：本文将基于滞后和脉宽调制（PWM）技术的两种控制律应用于基于单位功率因数电流注入的三相整流器。为了评估每种技术的性能，就线电流纹波和开关频率进行了理论分析。还考虑了主要导致线路电流失真的控制失谐问题。为了强调比较研究，使用Matlab / Simulink的Power System Blockset工具完成了数值模拟。
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