Experimental investigation of partial shading scenarios on PV (photovoltaic) modules

Dolara, Alberto; Lazaroiu, George Cristian; Leva, Sonia; Manzolini, Giampaolo

doi:10.1016/j.energy.2013.04.009

Cited by 197 publications

(75 citation statements)

References 34 publications

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“…Energies 2018, 11, x 2 of 22 illustrated in Figure 1 [14]. The P-V characteristics demonstrate the electrical power delivered by the photovoltaic module at different voltages.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Partial Shading on the P-V Characteristics and the Maximum Power of a Photovoltaic String

et al. 2018

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Abstract:A photovoltaic system is highly susceptible to partial shading. Based on the functionality of a photovoltaic system that relies on solar irradiance to generate electrical power, it is tacitly assumed that the maximum power of a partially shaded photovoltaic system always decreases as the shading heaviness increases. However, the literature has reported that this might not be the case. The maximum power of a partially shaded photovoltaic system under a fixed configuration and partial shading pattern can be highly insusceptible to shading heaviness when a certain critical point is met. This paper presents an investigation of the impact of partial shading and the critical point that reduce the susceptibility of shading heaviness. Photovoltaic string formed by series-connected photovoltaic modules is used in this research. The investigation of the P-V characteristic curve under different numbers of shaded modules and shading heaviness suggests that the photovoltaic string becomes insusceptible to shading heaviness when the shaded modules irradiance reaches a certain critical point. The critical point can vary based on the number of the shaded modules. The formulated equation in this research contributes to determining the critical point for different photovoltaic string sizes and numbers of shaded modules in the photovoltaic string.

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“…Energies 2018, 11, x 2 of 22 illustrated in Figure 1 [14]. The P-V characteristics demonstrate the electrical power delivered by the photovoltaic module at different voltages.…”

Section: Introductionmentioning

confidence: 99%

“…When a photovoltaic module is connected to a piece of measurement equipment, P-V characteristics will be obtained as illustrated in Figure 1 [14]. The P-V characteristics demonstrate the electrical power delivered by the photovoltaic module at different voltages.…”

Section: Introductionmentioning

confidence: 99%

Impact of Partial Shading on the P-V Characteristics and the Maximum Power of a Photovoltaic String

et al. 2018

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“…In addition, it should be mentioned that solar irradiation is measured by three different sensors, namely a net radiometer to measure the direct normal irradiance (DNI) and two pyranometers (2,000 W/ m 2 measurement range and 0.3-60 lm, 305-2,800 nm spectral range) to measure solar diffusion and irradiation [16].…”

Section: Solar Tech Lab Facilitymentioning

confidence: 99%

Planning for PV plant performance monitoring by means of unmanned aerial systems (UAS)

Grimaccia

Aghaei

Mussetta

et al. 2014

Int J Energy Environ Eng

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The sustainable use of renewables will represent a key challenge in the near future, and relative energy management operations will play a crucial role in energy efficiency and savings for future generations. The operation and maintenance of energy systems are a very high valuable activity to prevent energy losses, and a correct monitoring can detect in advance equipment degradation guaranteeing good performance over time. Present research strives to find out possibility of unmanned aerial vehicle (UAV) use in monitoring applications for energy production sites and to investigate effects of this novel method on energy management procedures. Furthermore, investigation about novel approaches in cooperative inspection of real photovoltaic (PV) plants was carried out by light UAVs and utilize the global positioning system to find out the optimum route mapping during the solar PV modules monitoring. The purpose of this work is to propose a reliable, fast and cost effective method for PV plant planning and monitoring by means of UAS technology.

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“…However, the improper installation of photovoltaic (PV) arrays increases the cost of power and its loss, especially on ships. In recent years, several studies have been performed to optimize the tilt angle of PV panels [7][8][9][10][11][12]. Karakose and Baygin [13] presented a method for optimizing the location of PV modules under consideration of different shaded working conditions.…”

Section: Introductionmentioning

confidence: 99%

Optimal Tilt Angle of Photovoltaic Arrays and Economic Allocation of Energy Storage System on Large Oil Tanker Ship

et al. 2015

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This study optimizes the tilt angle of photovoltaic (PV) panels on a large oil tanker ship system and considers the impact of partial shading to improve the performance of the PV system. This work presents a novel method that considers the difference between the expected and real outputs of PV modules to optimize the size of energy storage system (ESS). The method also takes into account the cost of wasted power, the capital cost of the system, fuel cost and the CO2 emissions. Unlike on land, power generation using a PV on a ship depends on the date, latitude and longitude of the navigation. Accordingly, this work considers a route from Dalian in China to Aden in Yemen, accounting for the seasonal and geographical variations of solar irradiation. This proposed method adopts five conditions associated with the navigation route to model the total shipload. Various cases are discussed in detail to demonstrate the effectiveness of the proposed algorithm.

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Experimental investigation of partial shading scenarios on PV (photovoltaic) modules

Cited by 197 publications

References 34 publications

Impact of Partial Shading on the P-V Characteristics and the Maximum Power of a Photovoltaic String

Impact of Partial Shading on the P-V Characteristics and the Maximum Power of a Photovoltaic String

Planning for PV plant performance monitoring by means of unmanned aerial systems (UAS)

Optimal Tilt Angle of Photovoltaic Arrays and Economic Allocation of Energy Storage System on Large Oil Tanker Ship

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