A comparison study between series resonant and zero-voltage-resonant-Transition DC-DC converters
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© 2015 IEEE. Modular power conditioning systems, where each PV module has its own power converter, have been proven to yield higher output power due to their superior maximum power point tracking capabilities. In PV strings the typical operating voltages pose reasonable electrical safety problems that can be overcome in conventional modules. For certain cell constructions, such as thin film arrays deposited onto roofing sheets, it is not possible to obtain sufficient galvanic isolation. Some cells, such as the back contact cells, suffer from surface charge accumulation or polarisation effects that can be solved by isolation. This paper presents a comparative loss analysis between zero-voltage-resonant-Transition half bridge converter and series resonant converters that rare intend to be used as module isolation converters. Detailed analysis of the operation of these two converters is discussed. Two low voltage hardware prototypes of 300W have been made whose efficiency is of 90% for series resonant converter and 88% for zero voltage resonant transition converter.
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Li, Q.; Wolfs, Peter (2005)The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant ...
Li, Q.; Wolfs, Peter (2007)The two-inductor boost converter has been previously presented in a zero-voltage switching (ZVS) form where the transformer leakage inductance and the MOSFET output capacitance can be utilized as part of the resonant ...
Li, Q.; Wolfs, Peter (2003)The resonant half bridge dual converter has been previously developed for the DC-DC conversion application in a two-stage photovoltaic Module Integrated Converter (MIC). In order to apply Maximum Power Point Tracking ...