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In this paper zero-vector intervals of eight-segment PWM scheme based on space vector modulation (SVM) is optimized for three-phase isolated buck matrix-type rectifier. With the proposed non-equally distributed zero-vector intervals of eight-segment PWM scheme, the output inductor current ripple of the converter is reduced comparing to that of the equally distributed zero-vector intervals. The steady...
This paper presents a new switching table for direct power control (DPC) applied to a three-phase PWM rectifier. The conventional switching table for DPC is not satisfactory in the controlling of the active and reactive power. Based on the analysis on the change of active and reactive power, the optimal rectifier voltage can be selected. Consequently, the more effective switching table for DPC is...
For LCL-based PWM rectifier, there are two options of sensing currents. Either grid side currents or converter side currents can be selected as the feedback signals for the current control loop. The selection of sensor position makes the design of the control system different. In this paper, the control stability and dynamic performance of LCL filter-based PWM rectifier with converter side current...
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