Single-Phase Boost Sinusoidal Rectifier with Parallel-Input/Series-Output Structure

Abstract

Single-phase boost rectifier with parallel-input/series-output structure is studied by the simulation. In this rectifier, the output capacitor is charged by the series connection of intermediate capacitors arranged in parallel. To improve the input current distortion just after a zero-crossing, moreover, the snubber capacitor voltage is superimposed on the supply by using the snubber energy recovery switch cell. The simulated results confirm that the low-order input current harmonics can be reduced under the operating condition with the output voltage almost twice the peak supply voltage.