Determination of Unknown Parameters of Photovoltaic Module Using Genetic Algorithm

2016 ◽  
Vol 4 (2) ◽  
pp. 271 ◽  
Author(s):  
I. M. Abdelqawee ◽  
Ayman Y. Yousef ◽  
Khaled M. Hasaneen ◽  
H. G. Hamed ◽  
Maged N. F. Nashed
Keyword(s):  
Genetic Algorithm ◽  
Operating Conditions ◽  
Maximum Power ◽  
Absolute Difference ◽  
Photovoltaic Module ◽  
Unknown Parameters ◽  
Pv Module ◽  
Proposed Model ◽  
The Mathematical Model

<p> In this paper, the unknown parameters of the photovoltaic (PV) module are determined using Genetic Algorithm (GA) method. This algorithm based on minimizing the absolute difference between the maximum power obtained from module datasheet and the maximum power obtained from the mathematical model of the PV module, at different operating conditions. This method does not need to initial values, so these parameters of the PV module are easily obtained with high accuracy. To validate the proposed method, the results obtained from it are compared with the experimental results obtained from the PV module datasheet for different operating conditions. The results obtained from the proposed model are found to be very close compared to the results given in the datasheet of the PV module.</p>

scholarly journals Modeling of Photovoltaic Module Using the MATLAB

2019 ◽  
Vol 9 ◽  
pp. 59-69
Author(s):  
Alok Dhaundiyal ◽  
Divine Atsu
Keyword(s):  
Standard Test ◽  
Electrical Performance ◽  
Photovoltaic Module ◽  
Solar Pv ◽  
Pv Module ◽  
Proposed Model ◽  
Current Voltage ◽  
Pv Modules ◽  
The Impact ◽  
The Mathematical Model

This paper presents the modeling and simulation of the characteristics and electrical performance of photovoltaic (PV) solar modules. Genetic coding is applied to obtain the optimized values of parameters within the constraint limit using the software MATLAB. A single diode model is proposed, considering the series and shunt resistances, to study the impact of solar irradiance and temperature on the power-voltage (P-V) and current-voltage (I-V) characteristics and predict the output of solar PV modules. The validation of the model under the standard test conditions (STC) and different values of temperature and insolation is performed, as well as an evaluation using experimentally obtained data from outdoor operating PV modules. The obtained results are also subjected to comply with the manufacturer’s data to ensure that the proposed model does not violate the prescribed tolerance range. The range of variation in current and voltage lies in the domain of 8.21 – 8.5 A and 22 – 23 V, respectively; while the predicted solutions for current and voltage vary from 8.28 – 8.68 A and 23.79 – 24.44 V, respectively. The measured experimental power of the PV module estimated to be 148 – 152 W is predicted from the mathematical model and the obtained values of simulated solution are in the domain of 149 – 157 W. The proposed scheme was found to be very effective at determining the influence of input factors on the modules, which is difficult to determine through experimental means.

scholarly journals Mathematical Modeling of Solar Photovoltaic Module to generate Maximum Power Using Matlab/Simulink

2021 ◽  
Vol 2 (1) ◽  
pp. 1-11
Author(s):  
Amusat Ramoni Olawale ◽  
Sulaimon Shodiya ◽  
Yakubu H Ngadda
Keyword(s):  
System Simulation ◽  
Real Life ◽  
Maximum Power ◽  
Photovoltaic Module ◽  
Solar Photovoltaic ◽  
Basic Tool ◽  
Pv Module ◽  
Accurate Design ◽  
Proposed Model ◽  
Module Type

Modeling is a basic tool of the real system simulation in translating the Mathematical results into real life. In this study, the Modeling and simulation of photovoltaic Module type PS-P310-36 were developed, and maximum power was obtained. The output I – V and P – V curves of the model were studied and analyzed under different irradiance (200 W/m2, 400 W/m, 600 W/m2, 800 W/m, and 1000 W/m2) at a constant temperature of 25oC. The model attained maximum power of 308, 251.6, 191.4, 129.2, and 64.74 W at 1000, 800, 600, 400, and 200 W/m2 irradiance, respectively. The model results agreed with the characteristics curves of the PV module of previous similar PV studies. The proposed model will serve as quick tools for designers in obtaining the maximum power of PV at distinct irradiance. However, for a more accurate design, more information is needed.

scholarly journals Experimental Learning of Digital Power Controller for Photovoltaic Module Using Proteus VSM

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Abhijit V. Padgavhankar ◽  
Sharad W. Mohod
Keyword(s):  
System Modeling ◽  
Maximum Power ◽  
Digital Controller ◽  
Electric Signal ◽  
Photovoltaic Module ◽  
Boost Converters ◽  
Learning Platform ◽  
Pv Module ◽  
Experimental Learning ◽  
Virtual System

The electric power supplied by photovoltaic module depends on light intensity and temperature. It is necessary to control the operating point to draw the maximum power of photovoltaic module. This paper presents the design and implementation of digital power converters using Proteus software. Its aim is to enhance student’s learning for virtual system modeling and to simulate in software for PIC microcontroller along with the hardware design. The buck and boost converters are designed to interface with the renewable energy source that is PV module. PIC microcontroller is used as a digital controller, which senses the PV electric signal for maximum power using sensors and output voltage of the dc-dc converter and according to that switching pulse is generated for the switching of MOSFET. The implementation of proposed system is based on learning platform of Proteus virtual system modeling (VSM) and the experimental results are presented.

scholarly journals A dynamic model for series and parallel resistance of photovoltaic cell using material properties extraction and energy tunnel

2017 ◽  
Vol 16 (1) ◽  
pp. 9-21
Author(s):  
Kotchapong Sumanonta ◽  
Pasist Suwanapingkarl ◽  
Pisit Liutanakul
Keyword(s):  
Series Resistance ◽  
Photovoltaic Cell ◽  
Photovoltaic Module ◽  
Practical Application ◽  
Pv Module ◽  
Proposed Model ◽  
Outdoor Test ◽  
The Relationship ◽  
Parallel Resistance ◽  
Novel Model

This article presents a novel model for the equivalent circuit of a photovoltaic module. This circuit consists of the following important parameters: a single diode, series resistance (Rs) and parallel resistance (Rp) that can be directly adjusted according to ambient temperature and the irradiance. The single diode in the circuit is directly related to the ideality factor (m), which represents the relationship between the materials and significant structures of PV module such as mono crystalline, multi crystalline and thin film technology.  Especially, the proposed model in this article is to present the simplified model that can calculate the results of I-V curves faster and more accurate than other methods of the previous models. This can show that the proposed models are more suitable for the practical application. In addition, the results of the proposed model are validated by the datasheet, the practical data in the laboratory (indoor test) and the onsite data (outdoor test). This ensures that the less than 0.1% absolute errors of the model can be accepted.

Determination of Operating Conditions in Activated Sludge Process Using Fuzzy Neural Network and Genetic Algorithm

2001 ◽  
Vol 34 (8) ◽  
pp. 1033-1039 ◽  
Author(s):  
HIROKI YOSHIKAWA ◽  
TAIZO HANAI ◽  
SHUTA TOMIDA ◽  
HIROYUKI HONDA ◽  
TAKESHI KOBAYASHI
Keyword(s):  
Neural Network ◽  
Genetic Algorithm ◽  
Activated Sludge ◽  
Fuzzy Neural Network ◽  
Operating Conditions ◽  
Activated Sludge Process ◽  
Fuzzy Neural

Parameter estimation of single diode PV module based on Nelder-Mead optimization algorithm

2018 ◽  
Vol 15 (1) ◽  
pp. 70-81 ◽  
Author(s):  
Alivarani Mohapatra ◽  
Byamakesh Nayak ◽  
Kanungo Barada Mohanty
Keyword(s):  
Parameter Estimation ◽  
Optimization Algorithm ◽  
Environmental Conditions ◽  
Reference Model ◽  
Model Parameters ◽  
Unknown Parameters ◽  
Pv System ◽  
Content Type ◽  
Pv Module ◽  
Proposed Model

Purpose This paper aims to propose a simple, derivative-free novel method named as Nelder–Mead optimization algorithm to estimate the unknown parameters of the photovoltaic (PV) module considering the environmental conditions. Design/methodology/approach At a particular temperature and irradiation, experimental current-voltage (I-V) and power-voltage (P-V) characteristics are drawn and considered as a reference model. The PV system model with unknown model parameters is considered as the adaptive model whose unknown model parameters are to be adapted so that the simulated characteristics closely matches with the experimental characteristics. A single diode (Rsh) model with five unknown model parameters is considered here for the parameter estimation. Findings The key advantages of this method are that parameters are estimated considering environmental conditions. Experimental characteristics are considered for parameter estimation which gives accurate results. Parameters are estimated considering both I-V and P-V curves as most of the applications demand extraction of the actual power from the PV module. Originality/value The proposed model is compared with other three well-known models available in the literature considering various statistical errors. The results show the superiority of the proposed model with a minimum error for both I-V and P-V characteristics.

scholarly journals A model for predicting photovoltaic module performances

2019 ◽  
Vol 10 (4) ◽  
pp. 1914
Author(s):  
Nadia Bouaziz ◽  
Arezki Benfdila ◽  
Ahcene Lakhlef
Keyword(s):  
Environmental Parameters ◽  
Operating Conditions ◽  
Solar Irradiation ◽  
Photovoltaic Module ◽  
Physical Parameters ◽  
Solar Pv ◽  
Site Location ◽  
Pv System ◽  
Pv Module ◽  
Mathematical Expressions

The present paper deals with the development of a simulation model for predicting the performances of a solar photovoltaic (PV) system operating under current meteorological conditions at the site location. The proposed model is based on the cell equivalent circuit including a photocurrent source, a diode, a series and shunt resistances. Mathematical expressions developed for modeling the PV generator performances are based on current-voltage characteristic of the considered modules. The developed model allows the prediction of PV cell (module) behavior under different physical and environmental parameters. The model can be extended to extract physical parameters for a given solar PV module as a function of temperature and solar irradiation. A typical 260 W solar panel developed by LG Company was used for model evaluation using Newton-Raphson approach under MATLAB environment in order to analyze its behavior under actual operating conditions. Comparison of our results with data taken from the manufacturer’s datasheet shows good agreement and confirms the validity of our model. Hence, the proposed approach can be an alternative to extract different parameters of any PV module to study and predict its performances.

A Theoretical-Experimental Method for Analyzing the Dynamic Behavior of Elastomeric Lip Seals

1987 ◽  
Vol 60 (1) ◽  
pp. 176-189 ◽  
Author(s):  
Edzeario Prati
Keyword(s):  
Mathematical Model ◽  
Experimental Method ◽  
Dynamic Behavior ◽  
Operating Conditions ◽  
Inertial Effects ◽  
Contact Conditions ◽  
Lip Seals ◽  
Rotating Shafts ◽  
The Mathematical Model

Abstract An analytical-experimental method has been presented, which permits the dynamic behavior of lip seals for rotating shafts to be analyzed in the presence of both interference and static and dynamic eccentricities. A mathematical model which accounts for viscoelastic and inertial effects, permits determination of the lip—shaft contact conditions, the dynamic lip profile, and the gap area for various shaft speeds. The parameters which define the mathematical model have been determined experimentally. Such a model permits the performance of the particular seal studied to be predicted for various operating conditions. Finally, the influence of parameters characterizing the viscoelastic and inertial effects on the gap area have been examined. The analytical findings correlate well with the experimental measurements of fluid leakage for practically relevant values of the shaft angular velocity.

scholarly journals TEMPERATURE AND IRRADIANCE BASED ANALYSIS THE SPECIFIC VARIATION OF PV MODULE

2021 ◽  
Vol 83 (6) ◽  
pp. 1-17
Author(s):  
Mohsin Ali Koondhar ◽  
Irfan Ali Channa ◽  
Sadullah Chandio ◽  
Muhammad Ismail Jamali ◽  
Abdul Sami Channa ◽  
...  
Keyword(s):  
Iterative Methods ◽  
Standard Test ◽  
Operating Conditions ◽  
Back Surface ◽  
Photovoltaic Module ◽  
Solar Module ◽  
Pv Module ◽  
Test Conditions ◽  
Specific Variation ◽  
Module Efficiency

The effect of irradiance and increase of temperature on the back surface of the PV module would decrease the standardized efficiency of PV. To overcome this problem observed results of solar module (ORSM) and Newton Raphson’s (iterative) methods have been proposed in this research. This article compares ORSM and iterative methods of changing the specifications of a single diode model (SDM) extracted from a PV module beneath standard test conditions (STC) to calculate irradiance and various operating conditions. To make this comparison, the exact value of each diode parameter on the STC is essential. These are achieved by accepted algebraic values and iterative techniques. Newton Raphson’s technique has been proven to be the mainly precise method to find these specifications in STC. Therefore, these specifications are used to different techniques that change the parameters of an SDM with radiation and temperature. The MATLAB model is designed to assess the conducting of individual techniques by PVM. The results are compared with the measured data, and the accuracy of photovoltaic module efficiency has been achieved through different technologies at different temperature and insolation levels.

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