Power Supply System Based on Photovoltaic Solar Panels and Current Transformers

Wei Tang; Jian Wen Wu; Chao Xin

doi:10.4028/www.scientific.net/AMR.816-817.1235

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 816-817Power Supply System Based on Photovoltaic Solar...

Power Supply System Based on Photovoltaic Solar Panels and Current Transformers

Abstract:

Aimed at the low voltage power supply of the intelligent terminal equipment controller in 10kV Distribution Power Grid, a new power supply system, which consists of 24V Lead-acid battery charged by photovoltaic (PV) solar panels and current transformers (CT), is researched in this paper. To maximize the charging power, three points Perturb and Observe algorithm with alterable perturbation step is applied. In the CT charging module, a hysteresis comparator and a discharge circuit are properly utilized to stabilize the charging voltage. At the end of this paper, the power supply system is experimentally validated, and can provide 17.45W charging power to battery with efficiency of 84.26%.

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Periodical:

Advanced Materials Research (Volumes 816-817)

Pages:

1235-1238

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.816-817.1235

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Online since:

September 2013

Authors:

Wei Tang, Jian Wen Wu, Chao Xin

Keywords:

CT Based Power Source, Leadacid Battery, Low-Voltage Power Supply, MPPT, PV

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