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http://dx.doi.org/10.4313/JKEM.2012.25.12.1021

Development and Evaluation of Multi-string Power Balancing System for Solar Streetlight  

Yun, Jung-Hyun (Department of Photoelectronics, Chosun College of Science & Technology)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.25, no.12, 2012 , pp. 1021-1027 More about this Journal
Abstract
In this paper, multi-string power balancing system for streetlight was developed. Accordingly, the components of the system was developed, unit converters, MPPT control unit, a bank of Li-ion battery and controls the charging and discharging. Loss by improving the efficiency of the system through the parallel operation of the unit converter output will be reduced. And by improving the efficiency of the system through the unit converter parallel operation, output losses will be reduced. Charging and discharging efficiency of the device used in a typical solar streetlight is calculated based on the maximum power input. Because of the variation of the input power has a weakness. In this paper, flexible to changes in the input, and a system was developed to minimize the cost per watt. Measure the performance of the unit module from the system, the result was more than 91%. And the charging capacity 12 V/105 Ah, module power 180 W, respectively. Should expect to be able to improve performance through continuous monitoring in the future.
Keywords
Power balancing system; Multi-string; Solar streetlight; MPPT; Converter;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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