scholarly journals Influence of the Incidence Angle Modifier and Radiation as a Function of the Module Performance for Monocrystalline Textured Glass and No Textured in Outdoor Exposed

2021 ◽  
Author(s):  
Issa Faye ◽  
Ababacar Ndiaye ◽  
Elkhadji Mamadou
Keyword(s):  
Incidence Angle ◽  
Electrical Parameter ◽  
Pv System ◽  
Spectral Radiation ◽  
Direct Radiation ◽  
Angular Response ◽  
Pv Systems ◽  
Pv Module ◽  
Module Performance ◽  
Measurement Area

The variation of the incidence angle over the year is an important parameter determined the performance of the module. The standard orientation of the module or a PV system, the perpendicular positioning of the sun to the module’s surface occurs twice a year. In outdoor exposed, angular losses of the module decrease the output of the PV or the system of PV. Although these losses are not always negligible, they are commonly not taken into account when correcting the electrical characteristics of the PV module or estimating the energy production of PV systems. This chapter is focused on the measurement of the angular response and spectral radiation (global and direct radiation) of solar cells based on two different silicon technologies, monocrystalline textured (m-Si) and non textured (mc-Si). The analysis of the source of deviation from the theoretical response, especially those due to the surface reflectance. As main contributions, the effects of glass encapsulation on the angular response of the modules are investigated by comparing the electrical parameter of the textured module to no textured and quantify electrical angular losses in this measurement area.

scholarly journals An efficient Mppt approach of PV systems: incremental conduction pathway

2019 ◽  
Vol 15 (3) ◽  
pp. 1189
Author(s):  
Murari Lal Azad ◽  
Pradip Kumar Sadhu ◽  
P Arvind ◽  
Anagh Gupta ◽  
Tuhin Bandyopadhyay ◽  
...  
Keyword(s):  
Integrated System ◽  
Maximum Power ◽  
Operating Point ◽  
Pv System ◽  
Optimal Operating ◽  
Pv Systems ◽  
Simulink Model ◽  
Pv Module ◽  
Conduction Pathway ◽  
Power Point

<p class="Abstract">Distributed Generation source have wide application due to their phenomenal advantages. These sources include Photovoltaic (PV) cells producing DC voltage at their output that connects the network through a power electronic interface. PV characteristics, on the other hand, illustrate the fact that maximum power can be extracted at the optimal operating point depending upon the solar radiation and ambient temperature. In order to keep   the PV module at its optimal operating point, a DC-DC converter is often used between a PV module and inverter. Consequently, Maximum power point trackers (MPPT) grab the foremost position in the efficiency analysis of the global PV system. Among the several MPPT algorithms, Incremental Conduction technique isemphasised upon as it is extremely simple in implementation within electronic programmable circuits. This paper incorporates the MPPT model using a PV module that always works in its optimal operating point. Design and experimental results of a small prototype of MPPT is presented here based on the Simulink model to verify the advantages of proposed integrated system.</p>

Relationship between module performance and the shading area for modules with different circuit connection mode

2021 ◽  
Author(s):  
zhang caixia ◽  
Honglie Shen ◽  
Jun Chen ◽  
Hua LI
Keyword(s):  
Hot Spot ◽  
Operating Conditions ◽  
Half Cell ◽  
Partial Shading ◽  
Pv Systems ◽  
Pv Module ◽  
Start Up ◽  
Performance Results ◽  
Module Performance ◽  
Cell Module

Abstract Partial shading is very common in photovoltaic (PV) systems. The mismatch losses and hot-spot effects caused by partial shading can not only affect the output power of a solar system, but also can bring security and reliability problems. This paper centers on the silicon crystalline PV module technology subjected to operating conditions with some cells partially or fully shaded. A comparison of the electrical and hot-pot performance results for four different connection mode PV modules without shading and with partial or full shading is presented. Bypass diode of different modules would start up in the different conditions with increasing shading area. We found that the regular half-cell module degraded about 60% than its non-shaded power, which is about 30% less than the other three modules, when the short edges of these modules were shaded. The highest hot-spot temperature of the regular half-cell module was 75.5C, which is the lowest among the four modules before diode started up.

scholarly journals Control-Oriented Model of Photovoltaic Systems Based on a Dual Active Bridge Converter

2021 ◽  
Vol 13 (14) ◽  
pp. 7689
Author(s):  
Diego Alejandro Herrera-Jaramillo ◽  
Elkin Edilberto Henao-Bravo ◽  
Daniel González González Montoya ◽  
Carlos Andrés Ramos-Paja ◽  
Andrés Julián Saavedra-Montes
Keyword(s):  
High Voltage ◽  
High Efficiency ◽  
Voltage Regulation ◽  
Pv System ◽  
Power Extraction ◽  
Pv Systems ◽  
Dual Active Bridge ◽  
Pv Module ◽  
Proposed Model ◽  
Voltage Conversion

Solar energy is a source of sustainable energy and its optimal use depends on the efficiency and reliability of PV systems. Dual active bridge converters are a solution to interface PV modules with the grid or high voltage requirement applications due to the high voltage-conversion-ratio and high efficiency provided by such a converter. The three main contributions of this work are: an extensive mathematical model of a DAB converter connected to a PV module including protection diodes, which is intended to design non-linear controllers, an explicit linearized version of the model, which is oriented to design traditional control systems; and a detailed and replicable application example of the model focused on maximizing the power extraction from a PV system. The modeling approach starts with the differential equations of the PV system; however, only the fundamental and average components of each signal is used to represent it. The control-oriented model is validated using a detailed circuital simulation. First, through the comparison of frequency and time diagrams of the proposed model and a detailed one; and then, through the simulation of the PV system in a realistic application case. PV voltage regulation and maximum power extraction are confirmed in simulation results.

scholarly journals An optimum location of on-grid bifacial based photovoltaic system in Iraq

2022 ◽  
Vol 12 (1) ◽  
pp. 250
Author(s):  
Amina Mahmoud Shakir ◽  
Siba Monther Yousif ◽  
Anas Lateef Mahmood
Keyword(s):  
Photovoltaic System ◽  
Energy Yield ◽  
Optimum Location ◽  
Pv System ◽  
Pv Systems ◽  
Pv Module ◽  
System Module ◽  
Irradiation Level ◽  
The Cost ◽  
Suitable Location

Bifacial photovoltaic (PV) module can gain 30% more energy compared to monofacial if a suitable location were chosen. Iraq (a Middle East country) has a variable irradiation level according to its geographic coordinates, thus, the performance of PV systems differs. This paper an array (17 series, 13 parallel) was chosen to produce 100 kWp for an on-grid PV system. It investigates the PV system in three cities in Iraq (Mosul, Baghdad, and Basrah). Effect of albedo factor, high and pitch of the bifacial module on energy yield have been studied using PVsyst (software). It has been found that the effect is less for a pitch greater than 6 m. The energy gained from bifacial and monofacial PV system module in these cities shows that Mosul is the most suitable for installing both PV systems followed by Baghdad and lastly Basrah. However, in Basrah, the bifacial gain is 12% higher in the energy than monofacial as irradiation there is higher than the other locations, especially for elevation above 1.5 m. Moreover, the cost of bifacial array is 7.23% higher than monofacial, but this additional cost is acceptable since the bifacial gain is about 11.3% higher energy compared to the monofacial.

scholarly journals An Experimental Analysis of the Electrical Parameter Variation of a Photovoltaic Module

2020 ◽  
Author(s):  
Hugo Nunes ◽  
Maria Do Rosário Calado ◽  
Sílvio Mariano ◽  
José Pombo
Keyword(s):  
Electrical Parameter ◽  
Operating Conditions ◽  
Electricity Production ◽  
Photovoltaic Module ◽  
Pv Systems ◽  
Pv Module ◽  
Typical Day ◽  
Temperature Levels ◽  
True Alternative ◽  
A Current

Photovoltaic (PV) energy has been asserting itself in recent years as a true alternative for the electricity production in the future. It is well known that the accuracy of PV parameters is crucial to achieving optimal control of PV systems under any operating conditions. Although many attempts have been made to study the operating ranges of PV parameters, this remains a  current research topic given the diversity of  PV technologies. In this paper, the PV parameters variation with irradiance and temperature levels is experimentally analysed for a polycrystalline (poly-Si) silicon PV module. The experiment considers experimental data from 130 I-V characteristic curves measured over a typical day, considering several irradiance and temperature levels in the range 29–1023 W/m2 and 19–68 °C, respectively. The results show that PV parameters vary considerably with irradiance and temperature levels for poly-Si technology. Keywords: Photovoltaic module, Photovoltaic parameters, Singe-diode model, Irradiance and temperature influence

scholarly journals Performance Evaluation of Monocrystalline PV Module in Hot Arid Climate for Developing Smart Cities

2019 ◽  
Author(s):  
Asif Khan ◽  
Saim Memon
Keyword(s):  
Smart Cities ◽  
Continuous Exposure ◽  
Pv System ◽  
Pv Systems ◽  
The North ◽  
Pv Module ◽  
Northern Areas ◽  
Heating Effects ◽  
Hot Arid Climate ◽  
Temperature Impacts

Due to an increase of the monocrystalline PV systems installations, for a drive towards the sustainable smart cities in the hot arid developing country such as Pakistan, pose challenges of the performance and degradation issues. Monocrystalline PV module efficiencies are declining and damaging under the continuous exposure to higher surface day-time temperatures in the different parts of the country. A MATLAB simulations were performed based on the validated mathematical approach. This paper investigates the hot arid surface temperature impacts on the performance of PV modules during the summer and winter seasons in Pakistan. The investigations are performed examining the power generating efficiency of the PV system. This paper also investigates the influence of installations of PV-system in the North, South, East and West regions of Pakistan. It was examined that the northern areas of Pakistan are more suitable for maintaining the long-term durability of the PV system. Investigations are performed for the peak summer and peak winter days. During summer months, cooling strategies have to be implemented to overcome the heating effects whilst reducing degradation effect on installed PV-system.

Analysis Model of Mismatch Power Losses in PV Systems

2009 ◽  
Vol 131 (2) ◽  
Author(s):  
A. Chouder ◽  
S. Silvestre
Keyword(s):  
Dynamic Behavior ◽  
Power Losses ◽  
Analysis Model ◽  
Pv System ◽  
Pv Systems ◽  
Pv Array ◽  
Pv Module ◽  
Conditions Of Work ◽  
System Power ◽  
Mismatch Effect

A novel procedure to extract and analyze the power losses, mainly due to mismatch effects, in a photovoltaic (PV) system is presented. The developed model allows the extraction of the main PV module and PV array parameters from I-V characteristics, as well as in dynamic behavior under real conditions of work. The method allows a good estimation of the mismatch effect on the total PV system power losses.

scholarly journals Dust Deposition Effect on Solar Photovoltaic Modules Performance: A Review

2020 ◽  
pp. 117-125
Keyword(s):  
Power Generation ◽  
Fossil Fuel ◽  
Solar Irradiation ◽  
Solar Photovoltaic ◽  
Dust Deposition ◽  
Pv System ◽  
Photovoltaic Modules ◽  
Pv Module ◽  
Deposition Effect ◽  
Module Performance

The power generation everywhere in the world is mostly generated from nonrenewable technology source particularly fossil fuel. So, these resources will be reduced to utilizing in future. Among these power generation technologies, Photovoltaic (PV) system have got great position by several reasons. This paper gives general review of PV module performance and effect of dust deposition. The deposition of dust has significant effect in transmittance of solar irradiation in the PV module. The dust deposition effect of multiple areas is discussed in literature review.

scholarly journals Improvement of Stand-Alone Solar PV Systems in the Maputo Region by Adapting Necessary Parameters

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4357
Author(s):  
Paxis Marques João Roque ◽  
Shyama P. D. Chowdhury ◽  
Zhongjie Huan
Keyword(s):  
Power Generation ◽  
Power Output ◽  
Solar Pv ◽  
Energy Potential ◽  
Pv System ◽  
Pv Systems ◽  
Pv Module ◽  
Pv Modules ◽  
Solar Pv System ◽  
Operation Parameters

With the energy crisis and the constant blackout in the Mozambique Power Company grid, the option of applying solar photovoltaic (PV) systems has been one of the most used alternatives in the neighborhoods of the Maputo region. However, inefficient power delivery caused by unproper sizing and installation of stand-alone solar PV systems has been contributing to the low utilization of solar energy potential in the Maputo region. The optimal sizing and installation of the solar PV system is addressed to evaluate the influence of installation and operation parameters on the power output of PV modules. In this topic, PV modules parameters such as cell temperature, the module′s slope and azimuth angles, the losses caused by excessive heating of the module cells, shadows and dust on the PV module and the cooling process at the back of the module are assessed in order to find out the consequence of inadequate installation and operation parameters of solar PV systems in the Maputo region. The proper sizing and installation of the stand-alone solar PV system is fundamental to guarantee the continuous and efficient supply of power and, thus, different tools and techniques have been applied. This study will deal with the hybrid optimization of multiple energy resources (HOMER) and system advisor model (SAM), to size and improve power generation of solar PV systems. This study concluded that for the Maputo region, the optimal tilt angle is 23 ± 2 and the azimuth angle is 11 ± 2. In addition, for optimization of the tilt and azimuth angles, it also examined the effect of module backside ventilation and proved that the system′s power generation increases with the rise of spacing between the module and the wall, since the strategy prevents the decline of the module cells efficiency. However, the maximum recommended spacing between the PV module and the mounting wall is about 0.4 m, since an effort to increase the spacing up to this level results in an insignificant growth of power output.

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