Ways of single-phase rectifiers energy efficiency improvement

Abstract

-This paper introduces prospects for further development of a single zone-phase rectifier, aimed to research and improve it. A new radial type circuit and its advantages are provided as well. Based on these studies, the ways of single-phase rectifiers power factor improvement are suggested. The ladder four-phase rectifier is offered as a technical means which is based on a pulse-width rectified voltage control method. Efficiency of the pulse-width control method for rectifier with a ladder structure is evaluated. Ladder structure converters decrease losses in power semiconductors to 25%; therefore, the future progress of the zone-phase control method will be useful for practical application.