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Grid-Connected Photovoltaic Multistring PCS With PV Current Variation Reduction Control SCIE SCOPUS

Title
Grid-Connected Photovoltaic Multistring PCS With PV Current Variation Reduction Control
Authors
Kwon, JMKwon, BHNam, KH
Date Issued
2009-11
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
In this paper, a grid-connected photovoltaic (PV) multistring power conditioning system with PV input current reduction control is proposed. An improved maximum power point tracking (MPPT) method for the multistring converter is suggested. The suggested MPPT algorithm tracks the maximum power point even though measurement errors exist. To reduce the PV current variation introduced by the inverter, a PV current variation reduction control is suggested. This PV current variation reduction control reduces the PV current variation without additional components. The low current variation reduces the filter size and improves the MPPT efficiency. All algorithms and controllers are implemented on a single-chip microcontroller. Experimental results obtained on a 3-kW prototype show high performance such as a MPPT efficiency of 99.7%, an almost unity power factor, a power efficiency of 96.7%, and a total harmonic distortion of 2.0%.
Keywords
Maximum power point tracking (MPPT); multistring; power conditioning system (PCS); POWER POINT TRACKING; NEURAL-NETWORK; SYSTEMS; CONVERTER; MODULE; GENERATION
URI
https://oasis.postech.ac.kr/handle/2014.oak/26394
DOI
10.1109/TIE.2008.2010293
ISSN
0278-0046
Article Type
Article
Citation
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 56, no. 11, page. 4381 - 4388, 2009-11
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남광희NAM, KWANG HEE
Dept of Electrical Enginrg
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