Partial Shading of PV System Simulation with Experimental Results

Alsayid, Basim; Alsadi, Samer; Jallad, Jafar; Dradi, Muhammad H.

doi:10.4236/sgre.2012.46049

Cited by 7 publications

(11 citation statements)

References 4 publications

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“…In practical, they are connected in series to form a module of 36, 60, or 70 cells. Then, the modules are assembled in different series and parallel configurations to form an array at the desired output voltage and current [8][9][10][11].…”

Section: Problems In Designing An Efficient Pv Systemmentioning

confidence: 99%

Proposing a Knowledge-based Model for Photovoltaic Modules Operating under Shading Conditions

Khosrojerdi

Gagnon

Valverde

2020

Wseas Transactions on Computers

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In a photovoltaic (PV) control system, the application of a maximum power point tracking (MPPT) method is the key factor that enables PV modules to operate efficiently under shading conditions. However, dealing with technical parameters of the MPPT-based controller requires expertise’s knowledge about MPPT methods. PV planning tools overlook to provide system design parameters needed for the control system. Ontologies, as knowledge-based models, provide improved representation, sharing and re-use of the relevant information that facilitate the process of decision-making. In this work, we propose a knowledge-based model representing key concepts associated with an MPPT-based control device. The ontology model is featured with Semantic Web Rule Language (SWRL) allowing the system planner to extract information about MPPT classifications and select an appropriate MPPT method. Moreover, technical recommendations and design information needed for the control system is delivered as well. Using the proposed ontology helps nontechnical practitioners and end-users to define design-related parameters correctly and plan efficient PV systems.

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Section: Problems In Designing An Efficient Pv Systemmentioning

confidence: 99%

Proposing a Knowledge-based Model for Photovoltaic Modules Operating under Shading Conditions

Khosrojerdi

Gagnon

Valverde

2020

Wseas Transactions on Computers

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“…There have been several publications using Matlab-Simulink to simulate PV module operation under non-homogeneous solar irradiance [1,5,8,9,17,24,28] which mainly focus on the simulation of PV module operation, thereby graphing features I-V and P-V. In this part, we mainly focus on simulation of RS to verify behavior of the system.…”

Section: Matlab Simulationmentioning

confidence: 99%

Simulation of Reconfiguration System Using Matlab-Simulink Environment

Thanh

Quang

2018

JCC

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Reconfiguration strategy is intended to minimize losses and increase efficiency of the photovoltaic (PV) system under non-homogeneous solar irradiation based on irradiance equalization. The reconfiguration system (RS) includes: irradiance equalization algorithms which is effective in the calculation to find optimal configuration; dynamic electrical scheme (DES) switching matrix which is controlled to obtain the optimal configuration for PV array. The recent publications focus on bringing out the algorithms with the aim to select the optimal connection configuration and control DES switching matrix. However, no published work has used Matlab-simulink to simulate RS operation. In this paper, the author uses the Matlab-simulink environment to simulate RS operation. Through results, the model demonstrates that with RS, the effectiveness of the PV array performance can rise by 10-50% under non-homogeneous solar irradiation.

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“…The application of a stationary PV panel and a heliostat is questionable, as a negative effect can occur. When the PV panel is illuminated non-uniformly, a partial shading effect could happen that can decrease output power [3]. However, if the dimensions of the heliostat mirror are properly selected, it is possible to avoid the partial shading effect.…”

Section: Advantages and Disadvantages Of A Heliostat Systemmentioning

confidence: 99%

Analysis of using a heliostat with non-rotating solar energy receivers

Janpavlis

Suzdaļenko

Stepanovs

et al. 2014

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

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The use of solar energy in Northern countries is not as obviously reasonable as in countries that are located closer to the Equator due to bigger differences of daytime during changes of seasons, as well as lower solar irradiance. This paper investigates the advantages of using a heliostat with non-rotating solar energy receivers (like water/air heating collectors, stationary PV panels or solar illumination collectors). The optimal orientation of the solar receiver and the heliostat is discussed in detail for two different optimization strategiesmaximal energy and maximal operation period with irradiance higher than 400 W/m 2 . The results of the analysis demonstrate that the heliostat allows prolonging the operation of solar receivers for 20% of time during the year, or allows extracting 30% more energy per annum if proper orientation angles are selected.

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Partial Shading of PV System Simulation with Experimental Results

Cited by 7 publications

References 4 publications

Proposing a Knowledge-based Model for Photovoltaic Modules Operating under Shading Conditions

Proposing a Knowledge-based Model for Photovoltaic Modules Operating under Shading Conditions

Simulation of Reconfiguration System Using Matlab-Simulink Environment

Analysis of using a heliostat with non-rotating solar energy receivers

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