Performance of current-fed inverter system with controlled flywheeling applied to supply converter

The input and output conditions for a regenerative thyristor-bridge convertor can be improved in many respects by adopting the controlled flywheeling technique. This paper reports an investigation into the performance of a current-fed inverter and induction-motor system when controlled flywheeling is applied to the supply convertor. It is concluded that the system and motor efficiency, supply-power factor and VAr requirement can be improved, particularly for applications such as traction which use a single-phase supply.