Identification and analysis of operating modes of single-phase semi-converter fed battery charging circuits using extinction angle control scheme — A monograph

A system of 1-phase semi-converter fed battery charging circuit meant for being supplied from a self-excited induction generator is analysed with extinction angle control (EAC) scheme. Several modes of operation of this scheme with continuous as well as discontinuous load current have been identified and the input and output voltage and current wave forms for each one of them have been depicted. Starting from the circuit equations, all these modes have been studied and expressions for the various performance quantities have been derived. Further, software simulation of all these cases have been carried out and the simulated waveforms are found to coincide with those calculated from the derived expressions, thereby validating the analysis of the various modes of operation of the converter-battery charging system. Experimental verifications have also been provided.