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.