Improvement of performance of a series resonant DC link PWM inverter

Abstract

This paper proposes a series resonant DC link PWM inverter which is improved for better performance. The prototype inverter has the advantage of a small DC inductance and output capacitors. At smaller DC inductance, it is important that the energy is controlled to be constant for better output control. Therefore, in this paper, the inverter is improved for better output performance and efficiency. As a result, the losses becomes smaller. This paper presents the design of the improved inverter, the experimental results and the characteristics of the losses.