Power variability of small scale PV systems caused by shading from passing clouds in tropical region

Jiang, Lijing; Maskell, Douglas L.; Srivatsan, R.; Xu, Qianfan

doi:10.1109/pvsc.2016.7750248

Cited by 10 publications

(3 citation statements)

References 16 publications

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“…When the greater the amount of shade, the lower the efficiency of the PV module according to behavior of shadow [24]. Likewise, the effect of cloudiness greatly reduced its output energy and efficiency on PV panel [25].…”

Section: Pv Module Efficiency With Shadow Effectmentioning

confidence: 99%

Study the effect of Environmental Factors on the performance of Photovoltaic Module

Sultan

Farhan

ALRkabi

2022

ejuow

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The effects of various environmental factors have been studied on the efficiency of the PV module as an essential part of the work and how to enhance its efficiency by reducing the influences environmental factors. The study deals with the efficiency of PV module and how to calculate and improve them. The measurements were made from December 2020 to August 2021 at 9 am to 5 pm for the weather of the city of Nasiriyah. The examination a single PV module is used, which gave an PMAX equal to 10 Watt. The most important has been studied on the PV is the temperature, whenever its grateful that led to decline in the output voltage and slight decrease in the output current. The output current PV module increased when the rise in the solar irradiance. To mitigate the impact of this factor, air cooling and water cooling had been used through cooling techniques by using DC fan, cooling blocks and water douche. It is clear that from our work we have improve efficiency of the module during the hot weather by 18% from using (air cooling and water cooling) techniques together. For another factors, such as dust, shadow, and exhaust smoke, showed factors no less an important factor should be besides temperature. The greater the quantity of these effects on the surface of the PV module, the more reduce in its efficiency. The influence of these factors appears to significantly reduce the output current due to its blocking of solar irradiance from PV module led to drop in the output voltage.

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Section: Pv Module Efficiency With Shadow Effectmentioning

confidence: 99%

Study the effect of Environmental Factors on the performance of Photovoltaic Module

Sultan

Farhan

ALRkabi

2022

ejuow

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“…Another characteristic to take into account in any design aimed at the production of photovoltaic solar energy, is the solar irradiation that exists in the geographical location where the system is intended to be implemented [7] [8]. Depending on the location there can be a greater or lesser strength of sun and therefore can have a greater solar irradiation.…”

Section: Fig 1 Cost Reduction Per Watt Example Usamentioning

confidence: 99%

Economic and environmental benefits in the production of photovoltaic solar electric energy using a solar tracking system in the municipality of Acacias - Meta (Colombia)

Aya¹,

Luna²,

García³

2018

IJET

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The following article presents the results of the research entitled Design and implementation of a fixed and mobile photovoltaic system to capture the solar power, determining the cost-benefit relation for the Acacias CEAD; research based on determining the solar energy potential that affects the National Open University and Distance-UNAD, located in the municipality of Acacia. In addition, this article will determine the solar radiation in the area, solar power per m² and cost-benefit ratio of the capture of photovoltaic solar electric energy between a fixed panel system and a solar tracking system. This investigation establishes that an additional production of 61.09% of electric energy is captured from solar panels with tracking compared to fixed solar panels. Keyword-Photovoltaic solar energy, solar tracking system, Renewable energies, solar power, cost benefit. I. INTRODUCTION Renewable energies such as solar, wind, hydroelectric and biomass have aroused great interest in the world as a possible solution to the production of non-renewable energies derived from coal, oil and gas [1], which through the history have had a volatile market, with their costs depending on the internal policies of each country. In addition, there is a need to reduce CO 2 emissions in the atmosphere in order to mitigate global warming, as a reference to the European Union which possess close to 40% of the world's patents related to renewable energy and are adopting a transition of energy production through clean energy [2]. Moreover, at the Paris climate conference (COP21), held in December 2015, 195 countries signed the first binding global climate agreement. Their main commitment is directed towards the reduction of greenhouse gas emissions and greenhouse effects, with which it is intended to keep below 2 °C the increase in global average temperature [3]. Colombia is currently one of the countries that has ratified the Paris agreement and has committed to reducing greenhouse gas emissions by 20% by the year 2030. As a first step, it has begun with the tax levy on a gallon of ACPM ($ 152 pesos), gasoline ($ 135 pesos) and liquefied petroleum gas ($ 95 pesos) and soon to kerosene, jet fuel and fuel oil. This tax will have an increase of 1% per year until the year 2050 [4]. The development of new techniques and technologies have reduced the cost of the implementation of photovoltaic solar energy [5]. One of these phenomena is the production of solar panel manufacturing in China. In addition to the decrease in the cost of polysilicon, the main component in the manufacture of solar panels, there is also an important improvement in the implementation of techniques that improve the efficiency of the photovoltaic cells.

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“…The main advantage tropical climate is they receive large amounts of sunshine all over the year yet can reduce the greenhouse emission, global warming and increase independent energy by utilize solar energy [7]. Eventhough tropical climate luxurious with solar irradiance, the clouds in that area and sun's daily movement significantly affect the energy generation of PV systems [8], [9]. Therefore, energy produced by PV system are intermittent and fluctuates [10].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of malaysian low voltage distribution network under different solar variability days

Zolkifr¹,

Gan²,

Shamsiri³

2019

IJEECS

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<span>The widespread of Photovoltaic (PV) systems as one of the distributed generation technologies could have profound impact on the distribution networks operation, particularly on network losses and network voltages fluctuations. This is mainly caused by the high PV penetrations coupled with high solar variability in the countries with large cloud cover. Therefore, this paper presents an investigation on the impact of residential grid-connected PV system by utilizing a typical low voltage (LV) network in Malaysia under various solar variability days. In this study, there are three scenarios; where, each scenario were performed with different levels of PV penetration and five different solar variability days. The impacts of PV system allocation in different scenarios and various solar variability days are assessed in term of voltage unbalance and network losses. The results propose that Scenario 1: randomly allocation of PV systems across the LV network has the lowest voltage unbalance and network losses especially during overcast day</span>

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Power variability of small scale PV systems caused by shading from passing clouds in tropical region

Cited by 10 publications

References 16 publications

Study the effect of Environmental Factors on the performance of Photovoltaic Module

Study the effect of Environmental Factors on the performance of Photovoltaic Module

Economic and environmental benefits in the production of photovoltaic solar electric energy using a solar tracking system in the municipality of Acacias - Meta (Colombia)

Performance analysis of malaysian low voltage distribution network under different solar variability days

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