Direct Power Controlled Three Phase Boost Type PWM Rectifier Based on Novel Switching Vector Table

Guang Ye Li; Jian Ru Wan; Ming Shui Li

doi:10.4028/www.scientific.net/AMR.308-310.1269

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 308-310Direct Power Controlled Three Phase Boost Type PWM...

Direct Power Controlled Three Phase Boost Type PWM Rectifier Based on Novel Switching Vector Table

Abstract:

The reactive power is out of control near the fundamental voltage vector in traditional direct power control system, which leads to the current distortion at AC side and the voltage fluctuation at DC side. The mechanisms of the instantaneous active power and the reactive power are analyzed based on the instantaneous power mathematical model of the PWM rectifier. A new direct power control strategy is researched based on novel sector division and novel switching table. This method not only has the advantage of rapid regulation for active power, but also can restrain reactive power fluctuation and reduce switching frequency. Simulative and experimental results verify its feasibility and effectiveness.