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Direct power control (DPC) is a popular control strategy with superior dynamic performances for pulse width modulation (PWM) rectifiers. However, when the conventional DPC is applied to three-level PWM rectifiers, the coupling between controls of active power and reactive power depresses the steady state performances seriously. By improving the switching table of three-level DPC, the effect of power...
This paper focuses on a three-level pulse width modulation (PWM) rectifier with direct power control (DPC) strategy based on switching table. The influences of power control coupling on system performances are analyzed and an optimized three-level DPC strategy is developed. The proposed three-level DPC changes the selection of control vectors dynamically according to the location of grid voltage vector...
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