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http://dx.doi.org/10.6109/jkiice.2013.17.5.1187

A Study on the New Maximum Power Point Tracking and Current Ripple Reduction of Solar Cell for the Grid-connected PV Inverter  

Hwang, Uiseon (청주대학교 전자공학과)
Kang, Moonsung (청주대학교 전자공학과)
Yang, Oh (청주대학교 반도체공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.17, no.5, 2013 , pp. 1187-1195 More about this Journal
Abstract
Photovoltaic inverters should always track the maximum power of solar cell arrays in operation. Also, they should be irrespective of the maximum power point voltage of a wide range of solar cells in tracking the maximum power point. If the current ripple of solar cells occurs, the function of maximum power point tracking drops, and normal tracking is difficult when solar radiation or the maximum power point changes. To solve this problem, this paper proposed a new maximum power point tracking algorithm with high efficiency and an algorithm to reduce the current ripple of solar cells. According to the results from the test on 4KW grid-connected PV inverter, the efficiency of maximum power point tracking and inverter output and the total harmonic distortion of inverter output current showed 99.97%, 97.5% and 1.05% respectively. So, the inverter showed excellent performance, and made possible stable maximum power point tracking operation when the solar radiation rapidly changed from 100% to 10% and from 10% to 100% for 0.5 seconds.
Keywords
maximum power point tracking; photovoltaic power system; grid-connected inverter; current ripple reduction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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