Design and Analysis of a New Zero Current Transition Bidirectional DC-DC Converter for Energy Storage Systems
Keywords:Zero current transition, DC-DC, Bidirectional, Energy storage systems.
This paper proposes a new zero-current transition based non-isolated bidirectional DC-DC converter for battery storage appliances in DC traction vehicles. The proposed converter has an auxiliary IGBTS, auxiliary inductor, auxiliary capacitor and bypass diodes are additionally to the main converter module. Usually, the zero-current transition achieved for the main IGBTs circuit has major advantages like reduced turn-off losses, overall conduction losses and minimized reverse recovery problems to the anti-parallel diodes of the main IGBTs. The operation principles, simulation and experimental investigations on 150 V/250 V/1 kW laboratory prototype are presented in order to show the performance and also to verify the soft-switching characteristics in boost/buck modes of the converter.
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