An indirect AC-AC converter with power factor correction and high frequency insulation

Abstract

This paper proposes an indirect AC-AC converter with Power Factor Correction (PFC) and high frequency isolation. The proposed topology is based on the Dual Active Bridge (DAB) converter in the three state switching cell. The proposed converter has a high power factor, low Total Harmonic Distortion (THD), fast dynamic response and power flow control between the rectifier and the inverter stage. The power flow control is performed through the phase-shit technique. The design of the controllers used by the converter and experimental results are presented.