Introducing a novel space vector classification technique for performance improvement of a three-phase PFC converters

Three-phase boost rectifiers, due to their high efficiency and low EMI emissions are widely used in industry as power factor correction (PFC) converters. Advantages of high switching frequency in this type of converters would necessitate looking for faster and simpler PWM techniques. This paper introduces a modified SVM modulator based on classification algorithm for three-phase boost rectifiers that relatively fulfills such requirements. The proposed modulation technique make possible having, higher switching frequencies and wider control bandwidth. In addition, classification algorithm offers exact positioning of the switching instants with less computational efforts. Moreover its implementation is simpler and needs less hardware and software, when compared with conventional SVM algorithms. Simulation results on PSCAD/EMTDC, confirm the validity of the analytical work.