Matlab/Simulink model of solar PV array with perturb and observe MPPT for maximising PV array efficiency

2015 ◽  
Author(s):  
Oladimeji Ibrahim ◽  
Nor Zaihar Yahaya ◽  
Nordin Saad ◽  
Muhammad Wasif Umar
Keyword(s):  
Solar Pv ◽  
Matlab Simulink ◽  
Pv Array ◽  
Simulink Model ◽  
Perturb And Observe ◽  
Array Efficiency

scholarly journals PV array connected to the grid with the implementation of MPPT algorithms (INC, P&O and FL Method)

2019 ◽  
Vol 10 (4) ◽  
pp. 2084
Author(s):  
Oumnia Lagdani ◽  
Mourad Trihi ◽  
Badre Bossoufi
Keyword(s):  
Fuzzy Logic ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Maximum Power Point ◽  
Matlab Simulink ◽  
Pv Array ◽  
Incremental Conductance ◽  
Simulation Results ◽  
Power Point

The purpose of this article is to extract the maximum power point at which the photovoltaic system can operate optimally. The system considered is simulated under different irradiations (between 200 W/m<sup>2</sup> and 1000 W/m<sup>2</sup>), it mainly includes the established models of solar PV and MPPT module, a DC/DC boost converter and a DC/AC converter. The most common MPPT techniques that will be studied are: "Perturbation and Observation" (P&amp;O) method, "Incremental Conductance" (INC) method, and "Fuzzy Logic" (FL) control. Simulation results obtained using MATLAB/Simulink are analyzed and compared to evaluate the performance of each of the three techniques.

scholarly journals Dynamic Modeling, Control, and Analysis of a Solar Water Pumping System for Libya

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Muamer M. Shebani ◽  
Tariq Iqbal
Keyword(s):  
Dynamic Modeling ◽  
Open Circuit ◽  
Solar Irradiation ◽  
Solar Pv ◽  
Matlab Simulink ◽  
Pv Array ◽  
Pumping System ◽  
Water Pumping ◽  
Specific Speed ◽  
Power Point

In recent years, one of the suitable solar photovoltaic (PV) applications is a water pumping system. The simplest solar PV pumping system consists of PV array, DC-DC converter, DC motor, and water pump. In this paper, water pumping system sizing for Libya is evaluated based on a daily demand using HOMER software, and dynamic modeling of a solar PV water pumping system using a Permanent Magnet DC (PMDC) motor is presented in Matlab/Simulink environment. The system performance with maximum power point tracking (MPPT) based on Fractional Open Circuit Voltage (FOCV) is evaluated with and without a battery storage system. In some applications, a rated voltage is needed to connect a PMDC motor to a PV array through a DC-DC converter and in other applications the input voltage can vary. The evaluation of the system is based on the performance during a change in solar irradiation. Using Matlab/Simulink, simulation results are assessed to see the efficiency of the system when it is operating at a specific speed or at the MPPT. The results show that an improvement in the system efficiency can be achieved when the PMDC motor is running at a specific speed rather than at the peak PV power point.

scholarly journals Performance Analysis of Conventional, Hybrid and Optimal PV Array Configurations of Partially Shaded Modules

2019 ◽  
Vol 9 (1) ◽  
pp. 3061-3073
Keyword(s):  
Performance Analysis ◽  
Solar Pv ◽  
Partial Shading ◽  
Power Number ◽  
Matlab Simulink ◽  
Pv Array ◽  
Pv Module ◽  
And Performance

In this paper, modeling and performance analysis of conventional configurations are Series-Parallel (SP), BridgeLinked (BL), Honey-Comb (HC), Total-Cross-Tied(TCT) and proposed hybrid configurations are SP-TCT, BL-TCT, HC-TCT, BL-HC and modified BL(MBL), modified HC(MHC), proposed optimal interconnection type configurations of a 5x5 size solar PV array under ten different partial shading cases it causes shading losses and compare the best configuration with respect to array power, number of interconnections or ties required between shaded modules in the array. The proposed optimal interconnection method reduces the number of ties required between modules and these ties are based on the position of number of shaded modules in the entire solar PV array. For the performance analysis of above 11 configurations, total ten shading cases are considered and compare the result with one un-shaded case-U of an irradiance 1000 W/m2 . The PV module parameters of Vikram Solar ELDORA 270 are used for modeling of above 11 conventional and proposed PV array configurations and simulate the models in MATLAB/ Simulink software.

An MPPT method using hybrid radial movement optimization with teaching-learning based optimization under fluctuating atmospheric conditions

2021 ◽  
pp. 1-10
Author(s):  
Imran Pervez ◽  
Adil Sarwar ◽  
Afroz Alam ◽  
Mohammad ◽  
Ripon K. Chakrabortty ◽  
...  
Keyword(s):  
Maximum Power ◽  
Metaheuristic Algorithms ◽  
Solar Pv ◽  
Maximum Power Point ◽  
Local Optima ◽  
Pv Array ◽  
Radial Movement ◽  
Teaching Learning Based Optimization ◽  
Power Point ◽  
Teaching Learning

Due to its clean and abundant availability, solar energy is popular as a source from which to generate electricity. Solar photovoltaic (PV) technology converts sunlight incident on the solar PV panel or array directly into non-linear DC electricity. However, the non-linear nature of the solar panels’ power needs to be tracked for its efficient utilization. The problem of non-linearity becomes more prominent when the solar PV array is shaded, even leading to high power losses and concentrated heating in some areas (hotspot condition) of the PV array. Bypass diodes used to eliminate the shading effect cause multiple peaks of power on the power versus voltage (P-V) curve and make the tracking problem quite complex. Conventional algorithms to track the optimal power point cannot search the complete P-V curve and often become trapped in local optima. More recently, metaheuristic algorithms have been employed for maximum power point tracking. Being stochastic, these algorithms explore the complete search area, thereby eliminating any chance of becoming trapped stuck in local optima. This paper proposes a hybridized version of two metaheuristic algorithms, Radial Movement Optimization and teaching-learning based optimization (RMOTLBO). The algorithm has been discussed in detail and applied to multiple shading patterns in a solar PV generation system. It successfully tracks the maximum power point (MPP) in a lesser amount of time and lesser fluctuations.

The Research on Flow Calculation Method of the Ball Solenoid Valve

2014 ◽  
Vol 721 ◽  
pp. 370-373
Author(s):  
Yi Yang ◽  
Liang Chu ◽  
Di Fan ◽  
Yu Ting Huang
Keyword(s):  
Calculation Method ◽  
Solenoid Valve ◽  
Matlab Simulink ◽  
Flow Calculation ◽  
Simulink Model ◽  
Flow Demand

This paper proposes a flow calculation method of the ball solenoid valve, by measuring diameter of the input valve spool, we can estimate the rated flow of the solenoid valve. Aiming at the calculation method, we have built a MATLAB/Simulink model to calculate the valve flow, and we also validated the model by the flow demand of one type of RBS system.

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