A new current fed type PWM inverter system using instantaneous vector control

This paper proposes a new PWM strategy of the current fed type inverter based on instantaneous vector control. In this system, the output voltages can be obtained directly by feedback control of the instantaneous vector. So, the proposed inverter system has a simple control circuit, fast response, and robustness against disturbances. In addition to these, it is possible that pure sinusoidal waveforms of load currents may be achieved by reducing the ripple of the output voltages under the inductive load