Title :
An APWM soft switched DC-DC converter for PV and EV
Author :
Ravi Kishore, K.V. ; Brahmendra, N. ; Sivaneasan, B. ; So, P.L. ; Chan, C.C.
Author_Institution :
Nanyang Technol. Univ., Singapore, Singapore
Abstract :
An asymmetrical pulse width modulated (APWM) full-bridge DC-DC converter for interfacing photovoltaic (PV) system with electric vehicle (EV) battery system is presented in this paper. The active switches in the front end converter are turned on at zero voltage with the proposed APWM technique. The operation of the converter with this technique is explained with detailed analysis. The theoretical waveforms and equations governing the operating intervals of the converter are also discussed. Simulation results of the proposed APWM soft switched full-bridge DC-DC converter are used to verify the theoretical analysis. A 100kHz, 1kW full-bridge converter prototype is developed and hardware results for zero voltage transition are presented.
Keywords :
DC-DC power convertors; PWM power convertors; battery powered vehicles; solar cells; solar powered vehicles; zero voltage switching; APWM soft switched DC-DC converter; EV; PV; active switches; asymmetrical pulse width modulated full-bridge DC-DC converter; electric vehicle battery system; frequency 100 kHz; full-bridge converter prototype; photovoltaic system; power 1 kW; zero voltage transition; Capacitors; DC-DC power converters; Power transformers; Rectifiers; Switches; Switching loss; Zero voltage switching; Asymmetrical pulse width modulation; full-bridge converter; soft switching; zero voltage switching;
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th
Conference_Location :
Denver, CO
DOI :
10.1109/PVSC.2014.6924911
