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http://dx.doi.org/10.6113/TKPE.2019.24.5.356

Detection of Aging Modules in Solar String with Jerk Function  

Son, Han-Byeol (Dept. of Electrical Engineering, Chonnam National University)
Park, Seong-Mi (Dept. of Lift Design, Korea Lift College)
Park, Sung-Jun (Dept. of Electrical Engineering, Chonnam National University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.24, no.5, 2019 , pp. 356-364 More about this Journal
Abstract
In this study, major problems, such as licensing problems due to civil complaints, deterioration of facility period, and damage of modules, are exposed to many problems in domestic businesses. Particularly, the photovoltaic (PV) modules applied to early PV systems have been repaired and replaced over the past two decades, and a new module-based aging detection method is needed to expand the maintenance market and stabilize and repair power supplies. PV modules in a PV system use a string that is configured in series to generate high voltage. However, even if only one module of the solar modules connected in series ages, the power generation efficiency of the aged string is reduced. Therefore, we propose a topology that can measure the instantaneous PV characteristic curve to determine the aging module in the solar string and the aging judgment algorithm using the measured PV characteristic curve.
Keywords
Solar aging; Jerk function; PV measurement system; Aging measurement technique;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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