A comparative study of phase-shift control schemes in a bidirectional series resonant converter
2017
In this paper, three different phase-shift control schemes for a bidirectional series resonant converter are selected for comparative investigation. Based on the fundamental harmonics approximation approach, steady state solutions are obtained for single-phase-shift control, dual-phase-shift control and modified dual-phase-shift control respectively. An extended study is then performed in terms of power regulation, resonant tank current and soft-switching range for each control scheme. Based on the results, it can be shown that the modified dual-phase-shift scheme has a better performance over a wide variation range of load and input/output voltage.
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