Improved modeling and analysis of a high-performance acdc converter for high-frequency power distribution system

Abstract EN

This paper presents an improved modeling and detailed analysis for determining the steady-state and transient performance of a high-performance ac/dc converter topology that can be utilized in high-frequency power distribution systems.

The output voltage is regulated by controlling the turn on time of the anti-parallel semiconductor control switches.

Both the steady-state and transient performance is explored in details.

It is shown that the converter has almost unity power factor of close to 99%, input current is almost sinusoidal with a total harmonic distortion of less than 2%, a conversion efficiency of close to 96% and very low inrush current of around 110% can be achieved, when appropriate circuit components are used.

Based on predetermined value of the input current total harmonic distortion, consideration is given to the design of important circuit components.

Keywords: Unity power factor, total harmonic distortion, efficiency, Power electronics