Control of a novel PV tracking system considering the shadow influence

Jang, Mi-Kyeong; Choi, Jung-Sik; Ko, Jae-Sub; Mun, Ju-Hui; Chung, Dong-Hwa

doi:10.1109/iccas.2010.5669730

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The power generation of photovoltaic (PV) system is greatly dependent on the solar irradiation, temperature and shading pattern. Partial shading on PV array may be caused by trees, buildings, and moving clouds which would give a result of power generation reduction [1]- [2]. There are different shading patterns, such as one-string shading, two-string shading, and more, which can causes the maximum power points (MPP) generated by PV array to be reduced [3]- [6].…”

Section: Introductionmentioning

confidence: 99%

The Impact Mitigation of Partial Shading on PV Array Power Generation

Phiouthonekham¹,

Lekkruasuwan²,

Chaitusaney³

2015

AMM

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The impact of partial shading on photovoltaic (PV) array is discussed in this paper. The partial shading on PV array can significantly decrease the power generation of PV array. This study examines the modeling of PV module which relates with solar irradiation, temperature, and shading pattern. There are different shading patterns on PV array, such as one-string shading, two-strings shading, and much more. The characteristics of current-voltage (I-V) and voltage-power (V-P) curves for each individual the PV array can be different dependent on the multiple MPPs, maximum power points (MPPs). These multiple MPPs are basically lower than the MPP in case of no shading. Therefore, the total generated energy in an interested time period is usually reduced. As a result, this paper proposes the appropriate arrangement of PV modules in a PV array in order to mitigate the impact of partial shading. Finally, the proposed arrangement of PV modules is tested in a testing system. All the obtained results confirms that the proposed arrangement of PV modules is effective and can be applied in practice.

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Section: Introductionmentioning

confidence: 99%