scholarly journals A New SEPIC-Based DC-DC Converter with Coupled Inductors Suitable for High Step-Up Applications

2021 ◽  
Vol 12 (1) ◽  
pp. 178
Author(s):  
Ioana-Monica Pop-Calimanu ◽  
Sorin Popescu ◽  
Dan Lascu
Keyword(s):  
State Equations ◽  
Maximum Power Point ◽  
Photovoltaic Panel ◽  
Analysis And Design ◽  
Coupled Inductors ◽  
Point Tracking ◽  
Operation Conditions ◽  
Power Point Tracking ◽  
Semiconductor Voltage ◽  
Power Point

In this paper, a new hybrid SEPIC dc-dc converter with coupled inductors suitable for photovoltaic applications is presented. First, how the new topology was derived will be presented, continuing with its analysis and design equation as a standalone dc-dc topology. The analysis will consist of a steady-state equations derivation, a static conversion ratio calculation based on which the semiconductor voltage and current stresses are evaluated and states the continuous conduction mode (CCM) operation conditions. The converter will then be simulated as a first validation of the theory using the dedicated Caspoc power electronics package. To finally validate the theoretical design, a prototype will be built in order to practically demonstrate the feasibility of the proposed solution and to reveal its main practical features and limitations. A comparative study to several other similar topologies will be carried out to identify its most desirable feature. Finally, an application of the new hybrid converter will consist of a complete solar energy conversion system using a photovoltaic panel. The maximum power point tracking (MPPT) algorithm will be elaborated. The solar system together with the MPPT will first be modeled, then simulated and practically implemented and tested.

Implementation of Photovoltaic Panel MPPT Through Robust Feedback Linearization Controller

2017 ◽  
Vol 18 (3) ◽  
Author(s):  
Vahid Jafari Fesharaki ◽  
Farid Sheikholeslam ◽  
Mohammad Reza Jahed Motlagh
Keyword(s):  
Feedback Linearization ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Photovoltaic Panel ◽  
Load Voltage ◽  
Point Tracking ◽  
Pv Panel ◽  
Power Point Tracking ◽  
Power Point ◽  
Conduction Mode

AbstractBecause of nonlinear I-V curves of photovoltaic panels, a maximum power point tracking (MPPT) technique is necessary to absorb maximum power. In this article state-space averaging method is utilized to express behavior of boost chopper converter. To generate the best operating point (PV panel desired voltage), incremental conductance is used. A Robust feedback linearization controller is proposed to deliver the PV panel to maximum power point. The controller is robust to environment variations, load uncertainties and load voltage disturbances. Stability of proposed controller is proved based on Lyapunov theorem. A boost chopper is used between PV panel and load to realize proposed MPPT technique. Boost chopper parameters are designed properly to operate converter in continues conduction mode (CCM). To evaluate MPPT technique some simulations in irradiance variation, temperature variation, load variation and load voltage disturbance are presented and discussed.

scholarly journals MODIFICATIONS OF MAXIMUM POWER POINT TRACKING P&O METHOD FOR PHOTOVOLTAIC PANEL

2018 ◽  
Vol 8 (4) ◽  
pp. 64-67
Author(s):  
Piotr Kozierski ◽  
Adam Owczarkowski ◽  
Marcin Lis ◽  
Dariusz Horla
Keyword(s):  
Maximum Power Point Tracking ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Photovoltaic Panel ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

Perturbation and Observe method for maximum power point tracking is presented in this paper. Three method modifications have been proposed, which allow satisfying tracking efficiency, even for very fast and noisy irradiance changes.

scholarly journals Accurate Maximum Power Point Tracking Algorithm Based on a Photovoltaic Device Model

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Lhoussain El Bahir ◽  
Touria Hassboun
Keyword(s):  
Accurate Method ◽  
Maximum Power ◽  
Photovoltaic Module ◽  
Online Measurement ◽  
Atmospheric Conditions ◽  
Maximum Power Point ◽  
Photovoltaic Panel ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

An accurate method is proposed to track the maximum power point of a photovoltaic module. The method is based on the analytical value of the maximum power point voltage, determined from a mathematical model of the photovoltaic panel. The method has the advantage of accuracy without any oscillations, as with certain conventional methods. The algorithm has also the ability to track accurately the maximum power point under variable atmospheric conditions and load changes. Experimental results are presented to show the effectiveness of the method. The implementation of the method needs an online measurement of irradiance, panel temperature, and panel current and voltage.

Maximum power point tracking algorithm for photovoltaic systems considering error minimization and power derivative

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Gilberto Lopes Filho ◽  
Ricardo Augusto Pereira Franco ◽  
Flávio Henrique Teles Vieira
Keyword(s):  
Maximum Power Point Tracking ◽  
Tracking Algorithm ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
Maximum Power Point ◽  
Photovoltaic Panel ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

Abstract In this work, a new maximum power point tracking algorithm (MPPT) for photovoltaic systems is proposed. The considered system is composed of a photovoltaic panel charging a battery using a buck-type DC–DC converter. Computational simulations are carried out to compare the performances of the MPPT algorithms, therein analyzing the output voltage and output power behavior at the photovoltaic panel. Three evaluation scenarios are considered: with constant irradiance and temperature, randomly chosen conditions and using real data. The results of the simulations show that the proposed algorithm applied to the photovoltaic system achieves a better performance than the main MPPT algorithms in the literature.

Dynamic Model and Control of a Photovoltaic Generation System using Energetic Macroscopic Representation

2016 ◽  
Vol 17 (5) ◽  
pp. 575-582 ◽  
Author(s):  
Javier Solano ◽  
José Duarte ◽  
Erwin Vargas ◽  
Jhon Cabrera ◽  
Andrés Jácome ◽  
...  
Keyword(s):  
Dynamic Model ◽  
Power Converter ◽  
Generation System ◽  
Maximum Power Point ◽  
Photovoltaic Generation ◽  
Photovoltaic Panel ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point ◽  
And Control

Abstract This paper addresses the Energetic Macroscopic Representation EMR, the modelling and the control of photovoltaic panel PVP generation systems for simulation purposes. The model of the PVP considers the variations on irradiance and temperature. A maximum power point tracking MPPT algorithm is considered to control the power converter. A novel EMR is proposed to consider the dynamic model of the PVP with variations in the irradiance and the temperature. The EMR is evaluated through simulations of a PVP generation system.

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