Analysis of the effects of inverter ripple current on a photovoltaic power system by using an AC impedance model of the solar cell
- Authors
- Kim, Wook; Van-Huan Duong; Thanh-Tuan Nguyen; Choi, Woojin
- Issue Date
- Nov-2013
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- AC impedance model; Impedance spectroscopy; Ripple current; Single phase inverter; Solar cell
- Citation
- RENEWABLE ENERGY, v.59, pp.150 - 157
- Journal Title
- RENEWABLE ENERGY
- Volume
- 59
- Start Page
- 150
- End Page
- 157
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/11114
- DOI
- 10.1016/j.renene.2013.03.035
- ISSN
- 0960-1481
- Abstract
- Most of the solar cell models suggested so far mainly employ steady state modeling methods to estimate the characteristic I-V curve of a solar cell at a certain operating point. Thus a study on the dynamic characteristics of a solar cell can rarely be found. For the design of a high performance power conditioning unit, it is essential to have accurate information about the static and dynamic characteristics of the solar cell. In this study an AC impedance model of a solar cell module is developed using Impedance Spectroscopy and it is then used for evaluating the effects of the ripple current generated by a single phase inverter. Experimental results verify that the energy conversion efficiency of a photovoltaic power system may be significantly reduced when the 120 Hz ripple current generated by a single phase inverter is larger than a certain value and an appropriate limit value for the 120 Hz ripple current is also suggested. (C) 2013 Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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