Simulation of Single Phase to Single Phase Step Down Cycloconverter for Industrial Application

Abstract

The variable frequency power electronic system design is having a great importance in various types of industrial applications. To fulfill those requirements of variable frequency, cycloconverters are widely used. Cycloconverter is a power electronics device which converts input power at one frequency into output power at different frequency without incorporating any sort of intermediate DC link. Modeling and circuit simulation are powerful problem solving techniques especially for designing and analyzing a complex systems. In this paper, circuit simulation of 1 $\phi$ to 1 $\phi$ step down cycloconverter feeding purely resistive and resistive-inductive loads have been performed by using thyristors with an anti-parallel diodes. The presented cycloconverter will be working for output frequency range from 50 Hz to 10 Hz. The simulated results have been presented and validated with theoretical values.