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The auxiliary converter (AXC) has been presented as a cost-effective solution to retrofit the conventional diode rectifier into a unity power factor and regeneration-enabled front end. The transistor-based AXC operates as an active filter when the load system consumes power. When the load system regenerates, the AXC can transfer the energy back to the ac grid. However, the pulse width modulation (PWM)...
A bridgeless, two-inductor, interleaved Boost converter that possess voltage-doubler characteristic when it operates with a duty cycle greater than 0.5 for power factor pre-regulator is proposed in this paper. The conduction losses of the boost switches are reduced because at low line the converter operates in the voltage-doubler mode for almost the entire line period, which reduces the rms currents...
Passivity-based control (PBC) is based on a procedure including energy/power shaping and series/parallel damping injection to control several nonlinear systems such as power converters. In this paper, PBC is used to design a controller for three phase/level/switch PWM (Vienna I) rectifier. Passivity-based controller is supposed to regulate the output voltage and the input three phase sinusoidal currents...
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