Shading of PV Module PDF
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Added on 2020-04-15
Shading of PV Module PDF
Added on 2020-04-15
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Shading of PV Module 1SHADING OF PV MODULEName of StudentInstitution Affiliation
Shading of PV Module 2Introduction There are several factors which affect the actual installation of PV system. Some of these factors include the shading, shading influence the PV module operation. The modules are alwaysinstalled in regions which has a lot of solar radiations and generally a vast clear land without shades[CITATION Yun \p 3 \l 1033 ]. Northwest part of China has such installation requirements of PV because of the wide distribution of Gobi, desert, and shoals. Nevertheless, under the practicalcondition, the PV modules are sometimes covered with tree leaves, blocks, and guano after a long time of use. These objects which block the PV modules cause shade and reduces the efficiency of the PV modules hence the output power from the module will reduce. Apart from these objects which causes shades, the difference between the actual terrain of PV system and preliminary design, the incorrect distance between rear PV module and front PV module will cause the shading of the PV module too. The shading of the PV module will also be due to the uneven and rugged surface where the PV module is located in the actual situation. If there is a partial shading in the PV module, there will be a change in the I-V of the PV module. The value of I-V will increase in other PV modules because of the shading of the PV module, therefore, the temperature will rise. After a long period of use, there will be ```hot spot ``. This is a scenario where some parts of the PV module because of the shading of the PV module. Obviously, this defect of the solar cell will generate heat and bring the `` hot spot `` for PV module even if the PV module works normally[CITATION Sim \p 23 \l 1033 ]. Such scenario leads to a decrease of the power produced from the PV module or simple the solar cells. This is due to the shadow on some PV modules (some parts of the solar system), rugged irradiance on the PV array which results to mismatching of power generated from the solar cells.
Shading of PV Module 3 Classification of Shading The shading scenario in the PV module differs depending on some particular phenomenon like PV system and the region where the PV solar is installed. The shades which occur in the PV module have some common issues like; the surrounding vegetation, front row array and power distribution room adjacent[CITATION Ken10 \p 120 \l 1033 ]. The structural surface and the condition at the ground might not match during the installation of the solar cells. Therefore, the PV array might not be at the equal height to enable the facade row shadow would shield the backrow[CITATION Dri \p 34 \l 1033 ]. The classifications of the shading in the PV modules are as below, the categories are reached after a long period of study;1.The nearby plant and guano shading type.2. The neighboring power distribution room and wire pole shading type.3.The front row shading type.The diagram of types of shadings are shown in the diagram below; Fig 1: The surrounding plant and guano shading type [CITATION Yun \l 1033 ].
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