With the increasing interest in electric and solar vehicles, compact, efficient and cost effective power solutions are necessary. In this paper a voltage control strategy is proposed for a novel single-stage, isolated, bidirectional AC-DC converter with open loop power factor correction (PFC) for use in on-board electric vehicle (EV) chargers. The analysis presents a mathematical correlation between the modulation phase-shift and the DC component of the DC bus current. The phase-shift is used to control the DC bus voltage. A transfer function is developed for the plant and a PI controller is selected and designed. The modulation scheme is unaffected by the voltage controller therefore open loop PFC is maintained. Simulation and hardware results are presented and confirm the analysis.
Voltage control of a single phase, single-stage, isolated AC-DC converter
2013-06-01
1041037 byte
Conference paper
Electronic Resource
English
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