ZVS PWM Resonant Full Bridge Converter with reduced Circulating loss and Voltage stresses of Bridge Rectifier and Voltage Doubler for Electric Vehicle Battery Chargers
نویسندگان
چکیده
─ This paper presents a voltage doubler in to a half bridge converter is derived for electric vehicle battery chargers. The proposed converter provides wide ZVS range, reduced circulating current and also voltage stress. Circulating current during the freewheeling phases of phase shift full bridge circuit are reset by the sum of LLC circuit output voltage and resonant capacitor voltage by achieving minimized circulating losses. In this project based on half bridge converter topology with an additional small inductor and two diodes connected in parallel with dividing capacitors is proposed for battery charger applications. The voltage stress on the secondary side diodes have clamping feature without overvoltage risks. Index Terms─ Battery charger, full-bridge converter, LLC half-bridge converter, resonant and PWM power conversions, minimal circulating losses, minimal voltage stresses , ZVS.
منابع مشابه
Zero Voltage Switched Full Bridge Converters for the Battery Charger of Electric Vehicle
This paper illustrates the study of three isolated zero voltage switched (ZVS) PWM full bridge (FB) converters to charge the high voltage battery in the charger of electric vehicle (EV). EV battery chargers have several challenges such as high efficiency, high reliability, low cost, isolation, and high power density. The cost of magnetic and filter components in the battery charger is reduced w...
متن کاملAnalysis and Simulation of ZVS Methods in Full Bridge Converters and Realization of a 3 KW Prototype
One of the difficulties with PWM switching converters is high switching loss and electromagnetic interference due to switching at non-zero voltage and current, which limits the operating frequency. In order to reduce the converter volume and weight (by increasing the frequency) and reducing switching losses, zero voltage and current switching methods are recommended. In this paper, four main ze...
متن کاملAnalysis and Simulation of ZVS Methods in Full Bridge Converters and Realization of a 3 KW Prototype
One of the difficulties with PWM switching converters is high switching loss and electromagnetic interference due to switching at non-zero voltage and current, which limits the operating frequency. In order to reduce the converter volume and weight (by increasing the frequency) and reducing switching losses, zero voltage and current switching methods are recommended. In this paper, four main ze...
متن کاملSimulation and Implementation of Quasi Resonant DC-DC Converter
Problem statement: A half-bridge LLC resonant converter with a voltage doubler rectifier has a simple structure and its Zero-Voltage-Switching (ZVS) capability is excellent from zero to full load condition. But conduction loss is more due to high circulating energy thus reducing the system efficiency. Moreover a variable frequency control method makes the control circuits more complicated than ...
متن کاملDesign Consideration for High Power Zero Voltage Zero Current Switching Full Bridge Converter with Transformer Isolation and Current Doubler Rectifier
This paper presents the design and analysis and of the proposed zero voltage zero current switching (ZVZCS) full bridge dc-dc converter with transformer isolation and current doubler rectifier for high power and high performance by introducing ZVS for lagging leg and ZCS for leading leg operation It has a simple and robust structure with asymmetrical shifted pulse width modulation technique. Th...
متن کامل