Title
Maximum power point tracking and optimal Li-ion battery charging control for photovoltaic charging system
Abstract
Due to the severity of the global energy crisis and environmental pollution, the photovoltaic (PV) system has become one kind of important renewable energy source. Solar energy has the advantages of maximum reserve, inexhaustibleness, and is free from geographical restrictions, thus making PV technology a popular research topic. This study is aimed at developing a PV charging system for Li-ion batteries by integrating Maximum Power Point Tracking (MPPT) and charging control for the battery. In order to enable the solar cell to use the sunlight effectively, a DC/DC boost converter for solar power generation was first designed, which used the MPPT Algorithm of Variable Step Size Incremental Conductance Method (INC) to enable the solar cell to track the MPPT at any time. The output from the DC/DC boost converter then entered the DC/DC buck converter to reduce the voltage for charging purposes. The charging system uses a constant voltage method to charge the Li-ion battery. The PI controller design Constant Voltage (CV) charging method uses a genetic algorithm to determine the optimal gain value. The numerical simulation showed that the PV charging system proposed by this study is easily realized, and can resist the disturbance of external environmental changes, and achieve fast charging.
Year
DOI
Venue
2012
10.1016/j.camwa.2011.12.048
Computers & Mathematics with Applications
Keywords
Field
DocType
maximum power point tracking,mppt algorithm,pv technology,important renewable energy source,dc boost converter,global energy crisis,solar cell,solar power generation,li-ion battery,optimal li-ion battery,dc buck converter,solar energy
Boost converter,Mathematical optimization,Environmental pollution,Control theory,Maximum power point tracking,Solar energy,Solar power,Battery (electricity),Electrical engineering,Buck converter,Photovoltaic system,Mathematics
Journal
Volume
Issue
ISSN
64
5
0898-1221
Citations 
PageRank 
References 
1
0.63
7
Authors
3
Name
Order
Citations
PageRank
Her-Terng Yau19219.07
Qin-Cheng Liang210.63
Chin-Tsung Hsieh3224.71