MPPT photovoltaic wide load-range ZVS phase-shift full-bridge charger with DC-link current regulation

Author

Lin, R.-L. ; Hong-Zhi Chou

Author_Institution

Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2012

fDate

7-11 Oct. 2012

Firstpage

1

Lastpage

8

Abstract

In this paper, a maximum-power-point-tracking (MPPT) photovoltaic wide load-range zero-voltage-switching (ZVS) phase-shift full-bridge (PSFB) charger with DC-link current regulation is developed in order to obtain high-efficiency power conversion even at light load condition. According to the output characteristics of the solar cell module, the proposed MPPT photovoltaic converter can be implemented with available analog control ICs on the market. Besides, by regulating the DC-link current for the post-stage PSFB charger, the wide load-range ZVS condition of the employed power switches can be ensured. Finally, the prototype circuit of the proposed photovoltaic wide load-range ZVS PSFB charger is built to verify the power conversion efficiency and MPPT efficiency at wide load range.

Keywords

electric current control; maximum power point trackers; photovoltaic power systems; power convertors; solar cells; zero voltage switching; DC-link current regulation; MPPT photovoltaic wide load-range ZVS phase-shift full-bridge charger; analog control IC; high-efficiency power conversion; maximum-power-point-tracking; phase-shift full-bridge charger; post-stage PSFB charger; solar cell module; Batteries; Mathematical model; Photovoltaic systems; Tracking; Zero voltage switching; Charger; Maximum Power Point Tracking (MPPT); Phase-shift Full-bridge (PSFB); Photovoltaic System (PV); Zero Voltage Switching (ZVS);

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting (IAS), 2012 IEEE

Conference_Location

Las Vegas, NV

ISSN

0197-2618

Print_ISBN

978-1-4673-0330-9

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2012.6373991

Filename

6373991