DocumentCode :
3679962
Title :
A high-efficiency hybrid series resonant DC-DC converter with boost converter as secondary for photovoltaic applications
Author :
Xiaonan Zhao;Lanhua Zhang;Xueshen Cui;Cong Zheng;Chung-Yi Lin;Yu-Chen Liu;Jih-Sheng Lai
Author_Institution :
Future Energy Electronics Center, Virginia Tech Blacksburg, VA, USA
fYear :
2015
Firstpage :
5462
Lastpage :
5467
Abstract :
Microconverters used for modular photovoltaic (PV) power conditioning systems require high efficiency over a wide input-voltage range. This paper introduces a series resonant converter through hybrid operation to meet this requirement. Under all input voltage conditions, the converter can achieve zero-voltage switching (ZVS) and/or zero-current switching (ZCS) of the primary-side devices and ZCS and/or ZVS of the secondary-side devices. The topologies and the three operation modes are introduced firstly. Especially, the steady state analysis based on the steady trajectories are presents in details. The design procedures of the power state are also introduced. The experimental results based on a 300-W prototype are given with 98.1% peak power stage efficiency and 97.6% CEC efficiency including all the auxiliary and control power under the 30V input voltage condition.
Keywords :
"Zero voltage switching","Zero current switching","MOSFET","Switches","Steady-state","Inductance","Voltage control"
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2015 IEEE
ISSN :
2329-3721
Electronic_ISBN :
2329-3748
Type :
conf
DOI :
10.1109/ECCE.2015.7310428
Filename :
7310428
Link To Document :
بازگشت