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Mismatch losses in PV power generators caused by partial shading due to clouds

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013 - Conference Proceedings
PublisherIEEE COMPUTER SOCIETY PRESS
DOIs
Publication statusPublished - 2013
Publication typeA4 Article in a conference publication
Event2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013 - Rogers, AR, United States
Duration: 8 Jul 201311 Jul 2013

Conference

Conference2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2013
CountryUnited States
CityRogers, AR
Period8/07/1311/07/13

Abstract

Clouds cause spatial and temporal variability of solar radiation which is the main cause of fluctuating photovoltaic power fed into the grid. TUT solar PV power station research plant has been designed to enable systematic and thorough analysis of the dynamic phenomena in energy conversion processes of grid-connected solar PV power systems. Its climatic and electric measuring systems comprise an accurate weather station as well as an extensive mesh of solar radiation and module temperature measurements located through the PV facility. In this paper, we propose a method to generate a spatial irradiance map from an array of solar radiation measurements. Additionally, we utilize it as a tool to evaluate the mismatch losses in the operation of different PV generators due to partial shading caused by moving clouds.

Keywords

  • maximum power point, mismatch losses, moving clouds, partial shading, PV power generator configurations