A battery charger with maximum power point tracking function for low-power photovoltaic system applications

Author

Lin, Chun-Wei ; Wang, Jian-Min ; Chiu, Huang-Jen ; Lo, Yu-Kang ; Lee, Ting-Peng ; Chen, Qing Su ; Yu, Wen Long ; Lee, Jian-Xing ; Shih, Frank

Author_Institution

Dept. of Electr. Eng., Chung-Yuan Christian Univ., Taiwan

fYear

2009

fDate

2-5 Nov. 2009

Firstpage

204

Lastpage

209

Abstract

A battery charger with MPPT function for low-power PV system applications is presented in this study. For effective miniaturization, the battery charger is designed with high frequency operation. Some current-sensing techniques are studied, and their MPPT implementation is compared. A pulse charging method is also designed to prolong battery lifetime. The operation principles and design considerations of the proposed PV charger are analyzed and discussed in detail. A laboratory prototype is implemented and tested to verify the feasibility of the proposed scheme. Experimental results show that high MPPT accuracy and conversion efficiency can be simultaneously achieved under high frequency operation.

Keywords

battery chargers; maximum power point trackers; photovoltaic power systems; battery charger; current sensing; high frequency operation; low-power photovoltaic system; maximum power point tracking function; pulse charging; Automotive engineering; Batteries; Costs; Hall effect devices; Photovoltaic systems; Power engineering and energy; Power system dynamics; Pulse power systems; Resistors; Uninterruptible power systems; Battery Charger; Conversion Efficiency; Low-Power PV System; MPPT Accuracy; Pulse Charging;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on

Conference_Location

Taipei

Print_ISBN

978-1-4244-4166-2

Electronic_ISBN

978-1-4244-4167-9

Type

conf

DOI

10.1109/PEDS.2009.5385709

Filename

5385709