A New Three-Phase Boost-Type Voltage Regulator With Unity Input Power Factor

Abstract

This paper presents a new configuration for high performance three-phase voltage boost regulator. For this new configuration, a control methodology is proposed to provide regulated ac output voltage. The new boost regulator has nearly unity input power factor for a change in the load voltage from 100% to more than 200% of the supply voltage. At these conditions, a nearly ripple free output voltage is achieved. The four-quadrant nature of the proposed regulator enables it to accept reactive loads. Theoretical analysis and practical controller implementation are presented and the efficacy of the proposed regulator has been confirmed.