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The main goal of this paper is to propose three new three-phase to three-phase ac-dc-ac converters, in which the input side is implemented with three-phase three-level PFC rectifier. This rectifier presents some advantages when compared to the two-level rectifier, i.e.: a) operation with high power level; b) reduced voltage harmonics while operating at lower frequency; and c) better quality in the...
This paper is concerned with the design and simulation of a pulse width modulation (PWM) rectifier for three-phase Permanent Magnetic motor drive. Based on the mathematical model of PWM rectifier, the dual-close-loop engineering design with decoupled feed-forward control is applied in the 3-phase voltage source rectifier. The objective to be reached is to realize unity power factor at the input ac...
A new digital control technique for power converters operating in discontinuous conduction mode (DCM) is introduced and applied to a boost converter. In contrast to the conventional analogue control methods, the principal idea of this new control scheme is to use real-time analysis and estimate the required on-time of the switch based on the dynamic of the system. The proposed control algorithm can...
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