Steady state analysis of a high-frequency inverter using LCC type load commutation

The object of this paper is to present the steady state analysis of a high-frequency resonant (load commutated) inverter which employs LCC type commutation circuit. The different modes of operation are explained. Fourier analysis method is used to analyze the circuit under steady state conditions, for continuous current mode of operation. The analysis is used to predict the performance of the inverter and to develop the design curves for the selection of inverter components. A simple design procedure is presented and illustrated by a design example. A computer program was developed to evaluate the performance of the inverter and test results are compared with the results obtained from a prototype experimental unit.