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http://dx.doi.org/10.21289/KSIC.2020.23.3.491

Battery Discharge System Configuration using Photovoltaic Simulator and PCS  

Jeong, Da-Woom (Dept. of Electrical Engineering, Chonnam University)
Park, Sung-Min (LTOP Co., Ltd.)
Park, Seong-Mi (Dept. of Lift Engineering, Korea Lift College)
Park, Sung-Jun (Dept. of Electrical Engineering, Chonnam University)
Moon, Seung-Pil (KEPCO Research Institute, Energy Valley R&D Center)
Publication Information
Journal of the Korean Society of Industry Convergence / v.23, no.3, 2020 , pp. 491-498 More about this Journal
Abstract
Recently, In the production line of batteries, charge and discharge tests are essential to verify battery characteristics. In this case, the battery charging uses a unidirectional AC/DC converter capable of output voltage and current control, and the discharge uses a resistive load. Since this method consumes energy during discharge, it must be replaced with a bi-directional AC/DC converter system capable of charging and discharging. Although it is difficult to replace the connected inverter part of the bi-directional AC/DC converter system due to the high cost, the spread of the solar-connected inverter rapidly increases as the current solar supply business is activated, and thereby the solar-connected type Inverter prices are plunging. If it can be used as a power converter for battery discharge without program modification of the solar-powered inverter, it will have competition. In this paper, propose a new battery discharge system using a combination of a photovoltaic DC/DC simulator and photovoltaic PCS using a battery to be used as a power converter for battery discharge without program modification of a low-cost photovoltaic inverter. In addition, propose an optimal solar characteristic curve for the stable operation of PCS. The validity of the proposed system was verified using a 500[W] class solar DC/DC simulator and a solar PCS prototype.
Keywords
Photovoltaic PCS; Photovoltaic DC / DC simulator; Battery Discharge; Grid-Connected PV Inverter;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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