Simulation of Photovoltaic Module Operation Modes and Tilt Angle Optimization According to the Criterion of Maximum Electricity Generation

2021 ◽  
Vol 57 (3) ◽  
pp. 233-241
Author(s):  
V. A. Bobkov ◽  
V. V. Elistratov
Keyword(s):  
Tilt Angle ◽  
Electricity Generation ◽  
Photovoltaic Module ◽  
Operation Modes

scholarly journals Effect of Solar Tilt Angles on Photovoltaic Module Performance: A Behavioral Optimization Approach

2020 ◽  
pp. 90-102
Author(s):  
Trina Som ◽  
A. Sharma ◽  
D. Thakur
Keyword(s):  
Solar Energy ◽  
Tilt Angle ◽  
Photovoltaic Module ◽  
Optimization Approach ◽  
Solar Module ◽  
Monthly Average ◽  
Pv Module ◽  
Yearly Maximum ◽  
Module Performance ◽  
Better Than

In the present study, performance analyses of a solar module are made through the optimal variation of solar tilt angle, pertaining to the maximum generation of solar energy. The work has been carried out for a particular location at Tripura, in India, considering three different cases on an annual basis. An intelligent behavioural based algorithm, known as artificial bee algorithm (ABC), has been implemented for finding the optimal orientation of solar angle in analysing the performance. The result shows marginal differences are obtained in producing yearly maximum solar energy for different orientations of the PV module. It has been observed that the maximum average solar energy is obtained for the case where continuous adjustment is made by rotating the plane about the horizontal east-west axis within 20° to 30° tilt angle. The computed maximum and minimum of the monthly average efficiency is 10.9% and 8.7%, respectively. Further, a comparative study has been performed in generating average solar energy through optimal tilt angle by the implementation of Perturb & Observe method (P&O). The monthly average solar power computed by P&O method resulted better in a range of 2% to 15% in comparison to that obtained by ABC. While on the other hand, the efficiency computed by ABC algorithm was 15% to 19% better than that evaluated by P&O method for all the cases studied in the present work.

scholarly journals A Theoretical Study on Performance and Design Optimization of Linear Dielectric Compound Parabolic Concentrating Photovoltaic Systems

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2454 ◽  
Author(s):  
Guihua Li ◽  
Jingjing Tang ◽  
Runsheng Tang
Keyword(s):  
Solar Cells ◽  
Tilt Angle ◽  
Electricity Generation ◽  
Incidence Angle ◽  
Optical Loss ◽  
Diffuse Radiation ◽  
Transfer Model ◽  
Photovoltaic Systems ◽  
Operation Conditions ◽  
Solar Rays

To investigate solar leakage and effects of the geometry of linear dielectric compound parabolic concentrator with a restricted exit angle (DCPCθa/θe) on the performance of DCPCθa/θe -based photovoltaic systems (DCPVθa/θe), a three-dimensional radiation transfer model based on solar geometry and vector algebra is suggested. Analysis shows that the annual radiation loss due to leakage is sensitive to the geometry of DCPCs and tilt-angle adjustment strategy, and the optimal θe,opt for minimizing annual leakage is the one that makes the incidence angle of solar rays on the plane wall equal to the critical incidence angle for total internal reflection at solar-noon in solstices and days when tilt-angle adjustment from site latitude is made for DCPV with the aperture’s tilt-angle being yearly fixed, and adjusted two and four times, respectively. It is found that annual radiation leakage is considerable small, for DCPVs with θe < θe,opt, almost all leaked radiation comes from sky diffuse radiation, whereas for θe = 90°, most of leakage is attributed to direct sunlight. As compared to similar non-concentrating solar cells, more radiation arrives annually on solar cells of DCPVθa/θe at small angles thanks to refraction of radiation on the aperture, hence, under same operation conditions, the annual average photovoltaic efficiency of solar cells for concentrated radiation is even higher. Analysis also shows that the power increase of DCPVs, being much less than the geometric concentration of DCPCs (Ct), is mainly attributable to optical loss due to absorption of solar rays on the way to the solar cells, and the power loss due to leakage of radiation is not significant. From the point of annual electricity generation, for full DCPVs with a given θa, DCPVθa/90 are favorable, and for truncated DCPVs with given θa and Ct, DCPVs with θe < 90 are favorable; whereas from the point of contribution per unit volume of dielectric to the annual electricity generation, the situation is reversed.

scholarly journals A New Model for Estimation of Energy Extraction from Bifacial Photovoltaic Modules

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5089
Author(s):  
Preeti Kumari Sahu ◽  
J. N. Roy ◽  
Chandan Chakraborty ◽  
Senthilarasu Sundaram
Keyword(s):  
Tilt Angle ◽  
Geographical Location ◽  
Performance Ratio ◽  
Real Field ◽  
Photovoltaic Module ◽  
Rear Side ◽  
Energy Yield ◽  
Solar Photovoltaic ◽  
The Cost ◽  
The Impact

The energy yield from bifacial solar photovoltaic (PV) systems can be enhanced by optimizing the tilt angle. Bifacial modules boost the energy yield by 4% to 15% depending on the module type and ground reflectivity with an average of 9%. The selection of tilt angle depends on several factors, including the geographical location, weather variation, etc. Compared to the variable tilt angle, a constant angle is preferred from the point of view of the cost of installation and the cost of maintenance. This paper proposes a new method for analysing bifacial modules. A simpler rear-side irradiance model is presented to estimate the energy yield of a bifacial solar photovoltaic module. The detailed analysis also explores the optimum tilt angle for the inclined south–north orientation to obtain the maximum possible yield from the module. Taking four regions into account, i.e., Kharagpur, Ahmedabad, Delhi, and Thiruvananthapuram, in the Indian climate, we studied several cases. The Kharagpur system showed a monthly rear irradiance gain of 13%, and the Delhi climate showed an average performance ratio of 19.5%. We studied the impact of albedo and GCR on the tilt angle. Finally, the estimated model was validated with the PVSyst version 6.7.6 as well as real field test measurements taken from the National Renewable Energy Laboratory (NREL) located in the USA.

scholarly journals The instability analysis of electricity generation of renewable energy sources, taking into account their technical condition

2020 ◽  
Vol 3 (59) ◽  
pp. 108-116
Author(s):  
O. Rubanenko
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Electricity Generation ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Fuzzy Model ◽  
Technical Condition ◽  
Main Element ◽  
Energy Sources ◽  
Photovoltaic Module

The relevance of the transition from traditional to renewable energy sources is investigated in the paper. The most popular renewable energy sources (RES) for Ukraine and the World are highlighted. The trend of changing electricity generation by photovoltaic stations is analyzed. Peculiarities of the functioning of electric networks with RES are considered. A mathematical model of the problem of optimal control of the parameters of the normal mode of the power system (PS) with a high level of integration of photovoltaic power plants (PPS) is presented. The main components of the criterion of optimality in the control of the power system, which must be taken into account when determining it. The article investigates in more detail such a component of the optimality criterion as power equivalent to the loss due to power failure caused by unstable generation. The instability of RES generation, in particular, FES, can be caused by both unpredictable changes in meteorological factors and changes in the technical condition of FES equipment. The photovoltaic module is the main element of any FES, so the article focuses on determining the technical condition of the FEM. Therefore, the main study presented in the article is the development of a neuro-fuzzy model to determine the technical condition of the FEM, which is represented by the coefficient of the total residual resource. For this purpose, the characteristic fault to the FEM, in particular, the fault to the frame of the FEM is analyzed and presented; the fault to cable insulation; the consequences of increasing resistance and heating of the contacts at the junction of the cell busbar FEM; the decrease to the impermeability of the FEM and others.

Optimum Tilt Angle and Orientation of Stand-Alone Photovoltaic Electricity Generation Systems for Rural Electrification

2011 ◽  
Vol 11 (7) ◽  
pp. 1219-1224 ◽  
Author(s):  
Prashanthini Sunderan ◽  
Adibah Mohd Ismail ◽  
Balbir Singh ◽  
Norani Muti Mohamed
Keyword(s):  
Tilt Angle ◽  
Electricity Generation ◽  
Rural Electrification

scholarly journals Effect of dust on the solar spectrum and electricity generation of a photovoltaic module

2020 ◽  
Vol 14 (14) ◽  
pp. 2759-2764
Author(s):  
Maruphong Konyu ◽  
Nipon Ketjoy ◽  
Chatchai Sirisamphanwong
Keyword(s):  
Electricity Generation ◽  
Solar Spectrum ◽  
Photovoltaic Module

The dislocation structure of a 10° [110] tilt boundary in silicon

1983 ◽  
Vol 41 ◽  
pp. 114-115
Author(s):  
B. Cunningham ◽  
D.G. Ast
Keyword(s):  
Dislocation Structure ◽  
Tilt Angle ◽  
Imaging Technique ◽  
Diamond Lattice ◽  
Tilt Boundary ◽  
Formation Mechanisms ◽  
Diffraction Contrast ◽  
Lattice Fringe ◽  
Tilt Boundaries ◽  
Chemically Vapor Deposited

There have Been a number of studies of low-angle, θ < 4°, [10] tilt boundaries in the diamond lattice. Dislocations with Burgers vectors a/2<110>, a/2<112>, a<111> and a<001> have been reported in melt-grown bicrystals of germanium, and dislocations with Burgers vectors a<001> and a/2<112> have been reported in hot-pressed bicrystals of silicon. Most of the dislocations were found to be dissociated, the dissociation widths being dependent on the tilt angle. Possible dissociation schemes and formation mechanisms for the a<001> and a<111> dislocations from the interaction of lattice dislocations have recently been given.The present study reports on the dislocation structure of a 10° [10] tilt boundary in chemically vapor deposited silicon. The dislocations in the boundary were spaced about 1-3nm apart, making them difficult to resolve by conventional diffraction contrast techniques. The dislocation structure was therefore studied by the lattice-fringe imaging technique.

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