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    Multifractal Analysis of Daily Global Horizontal Radiation in Complex Topography Island: La Reunion as a Case Study

    Source: Journal of Solar Energy Engineering:;2019:;volume( 141 ):;issue: 003::page 31005
    Author:
    Bessafi, Miloud
    ,
    Oree, Vishwamitra
    ,
    Hossen Khoodaruth, Abdel Anwar
    ,
    Jumaux, Guillaume
    ,
    Bonnardot, François
    ,
    Jeanty, Patrick
    ,
    Delsaut, Mathieu
    ,
    Chabriat, Jean-Pierre
    ,
    Zaid Dauhoo, Muhammad
    ,
    Peng, Li
    DOI: 10.1115/1.4041404
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: An accurate assessment of the amount solar radiation incident at specific locations is highly complex due to the dependence of available solar radiation on many meteorological and topographic parameters. Reunion Island, a small tropical French territory, intends to deploy solar energy technologies rapidly. In this context, the variability and intermittency of solar irradiance in different regions of the island is of immediate interest if the generated energy will be integrated in the existing energy network. This paper identifies different features of spatial and temporal variability of daily global horizontal irradiance (GHI) observed on Reunion Island. For this purpose, trends in the mean daily as well as seasonal variability of GHI were investigated. Furthermore, the intermittency and multifractal behaviors of the spatial daily GHI change were examined. Analyzing this daily variability is crucial to day-ahead forecasting of solar resource for better managing solar integration in the power grid, particularly in small island states with isolated power systems. Results revealed that the difference in cumulative GHI for two successive days ranges between −10 and 10 kW/m2/day while the highest and lowest variability of daily change occurs during summer and winter, respectively. The decorrelation distance, which gives a measure of the distance over which the variability at distinct geographic locations become independent of one another at a given timescale, was also calculated. It was found that the average decorrelation distance for day-to-day GHI change is about 22 km, a smaller value than that calculated by the previous studies using much sparser radiometric networks. The Hurst exponent, fractal co-dimension, and Lévy parameter, which describe solar radiation intermittency, were also evaluated for Reunion Island.
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      Multifractal Analysis of Daily Global Horizontal Radiation in Complex Topography Island: La Reunion as a Case Study

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4256006
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    contributor authorBessafi, Miloud
    contributor authorOree, Vishwamitra
    contributor authorHossen Khoodaruth, Abdel Anwar
    contributor authorJumaux, Guillaume
    contributor authorBonnardot, François
    contributor authorJeanty, Patrick
    contributor authorDelsaut, Mathieu
    contributor authorChabriat, Jean-Pierre
    contributor authorZaid Dauhoo, Muhammad
    contributor authorPeng, Li
    date accessioned2019-03-17T10:13:50Z
    date available2019-03-17T10:13:50Z
    date copyright10/1/2018 12:00:00 AM
    date issued2019
    identifier issn0199-6231
    identifier othersol_141_03_031005.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4256006
    description abstractAn accurate assessment of the amount solar radiation incident at specific locations is highly complex due to the dependence of available solar radiation on many meteorological and topographic parameters. Reunion Island, a small tropical French territory, intends to deploy solar energy technologies rapidly. In this context, the variability and intermittency of solar irradiance in different regions of the island is of immediate interest if the generated energy will be integrated in the existing energy network. This paper identifies different features of spatial and temporal variability of daily global horizontal irradiance (GHI) observed on Reunion Island. For this purpose, trends in the mean daily as well as seasonal variability of GHI were investigated. Furthermore, the intermittency and multifractal behaviors of the spatial daily GHI change were examined. Analyzing this daily variability is crucial to day-ahead forecasting of solar resource for better managing solar integration in the power grid, particularly in small island states with isolated power systems. Results revealed that the difference in cumulative GHI for two successive days ranges between −10 and 10 kW/m2/day while the highest and lowest variability of daily change occurs during summer and winter, respectively. The decorrelation distance, which gives a measure of the distance over which the variability at distinct geographic locations become independent of one another at a given timescale, was also calculated. It was found that the average decorrelation distance for day-to-day GHI change is about 22 km, a smaller value than that calculated by the previous studies using much sparser radiometric networks. The Hurst exponent, fractal co-dimension, and Lévy parameter, which describe solar radiation intermittency, were also evaluated for Reunion Island.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleMultifractal Analysis of Daily Global Horizontal Radiation in Complex Topography Island: La Reunion as a Case Study
    typeJournal Paper
    journal volume141
    journal issue3
    journal titleJournal of Solar Energy Engineering
    identifier doi10.1115/1.4041404
    journal fristpage31005
    journal lastpage031005-13
    treeJournal of Solar Energy Engineering:;2019:;volume( 141 ):;issue: 003
    contenttypeFulltext
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