Simulation and Analysis of Triggering Based Single Phase Bridge Type Cycloconverter

Abstract

Power electronics converters, especially cycloconverter & IGBT have been extending their range of use in industry because they provide reduced energy consumption, better system efficiency, improved quality of product and good maintenance. The cycloconverter has been traditionally used only in very high power drives, usually above one megawatt where no other type of drives can be used. The traditional cycloconverter requires a large number of thyristors with a very complex control circuit. But here simple triggering pulse generator based cycloconverter has developed with the help of IGBT. The cycloconverter has four IGBT comprises of a positive and negative bank. When positive current flows in the load, the output voltage is controlled by phase control of the two positive bank IGBT while the negative bank IGBT are kept off and vice versa when negative current flows in the load. In this paper the simulink model of single phase bridge types cycloconverter has simulated and analyzed that the output response of cycloconverter is two and four times to input response of cycloconverter.