Research on the Photovoltaic Maximum Power Point Tracking Technology

2013 ◽  
Vol 321-324 ◽  
pp. 1158-1161
Author(s):  
Guang Ya Liu ◽  
Ming Xiu Cheng
Keyword(s):  
Characteristic Curve ◽  
Circuit Model ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulink Simulation ◽  
Working Principle ◽  
Simulation Results ◽  
Power Point ◽  
Tracking Technology

This paper introduces the theory of photovoltaic battery and gives circuit model of the battery. Its Simulink simulation model and the output characteristic curve are achieved by the derivation of the circuit model. It also introduces the working principle of MPPT and different kinds of MPPT algorithm. The paper focuses on the implementation of the Conductance Increment Method , and carries on the simulation results.

Research on the Output Characteristics of Different PV Array Models

2012 ◽  
Vol 512-515 ◽  
pp. 155-158
Author(s):  
Yun Yun Chen ◽  
Zhan Feng Ying ◽  
Jun Ji Wu ◽  
Si Kun Heng
Keyword(s):  
Mathematical Model ◽  
Model Building ◽  
Maximum Power Point ◽  
Pv Array ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulation Results ◽  
Output Characteristics ◽  
Power Point ◽  
Tracking Technology

The simulation of the output characteristics of PV array is the problem to be solved firstly of the maximum power point tracking technology simulation of PV array. At present, there are three methods of PV array mathematical model building at home and abroad, but there aren’t comparative studies of their simulation effect to PV array. This paper analyses the three methods and carries out the simulation for them by MATLAB/Simulink platform. Finally, with comparing the simulation results of them, their simulation effect are basically identical, but the first mathematical model is more simple and is more helpful for the researchers to read and analyse.

AN IMPROVED PERTURBATION AND OBSERVATION BASED MAXIMUM POWER POINT TRACKING METHOD FOR PHOTOVOLTAIC SYSTEMS

2016 ◽  
Vol 78 (6-2) ◽  
Author(s):  
Ammar Hussein Mutlag ◽  
Azah Mohamed ◽  
Hussain Shareef
Keyword(s):  
Maximum Power ◽  
Pv System ◽  
Maximum Power Point ◽  
Fast Tracking ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulink Simulation ◽  
Current Voltage ◽  
Accurate Performance ◽  
Power Point

In photovoltaic (PV) system, maximum power tracking (MPPT) is crucial to improve the system performance. Irradiance and temperature are the two important parameters that affect MPPT. The conventional perturbation and observation (P&O) based MPPT algorithm does not accurately track the PV maximum power point. Therefore, this paper presents an improved P&O algorithm (Im-P&O) based on variable perturbation. The idea behind the Im-P&O algorithm is to produce variable step changes in the reference current/voltage for fast tracking of the PV maximum power point. The Im-P&O based MPPT is designed for the 25 SolarTIFSTF-120P6 PV panels, with a capacity of 3 kW peak. A complete PV system is modeled using the MATLAB/Simulink. Simulation results showed that the Im-P&O based MPPT achieved faster and accurate performance compared with the conventional P&O algorithm.

Modeling and Simulation of an Improved Measure of MPPT in Photovoltaic System

2011 ◽  
Vol 88-89 ◽  
pp. 244-249 ◽  
Author(s):  
Shou Jiang Cai ◽  
Pei Liang Wang ◽  
Zhi Duan Cai ◽  
Jian Hua Mao
Keyword(s):  
Modeling And Simulation ◽  
Simulation System ◽  
Photovoltaic System ◽  
Storage Space ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulation Results ◽  
Power Point ◽  
Accuracy Of Results

Intermittent scan tracking (IST) is a maximum power point tracking (MPPT) method of photovoltaic system. The scanning approach of this method generally is order scanning. But this scanning mode has the weaknesses of the huge storage space and excessive amount of calculation. To eliminate these defects, this paper proposes a new scanning mode, i.e. nested scanning. To verify the effectiveness of the proposed method, a simulation system was modeled based on Matlab/Simulink. In the experiment two scanning modes above were compared and the simulation results proved that, on the premise that the accuracy of results is guaranteed, nested scanning mode can effectively decrease the quantity of required scanning voltages and currents, reduce the amount of calculation and improve the scanning efficiency.

scholarly journals Application of Circuit Model for Photovoltaic Energy Conversion System

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Natarajan Pandiarajan ◽  
Ramabadran Ramaprabha ◽  
Ranganath Muthu
Keyword(s):  
Circuit Model ◽  
Power Electronic ◽  
Maximum Power Point ◽  
Loop Control ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Pv Module ◽  
Photovoltaic Energy Conversion ◽  
Energy Conversion System ◽  
Power Point

Circuit model of photovoltaic (PV) module is presented in this paper that can be used as a common platform by material scientists and power electronic circuit designers to develop better PV power plant. Detailed modeling procedure for the circuit model with numerical dimensions is presented using power system blockset of MATLAB/Simulink. The developed model is integrated with DC-DC boost converter with closed-loop control of maximum power point tracking (MPPT) algorithm. Simulation results are validated with the experimental setup.

scholarly journals VHDL Based Maximum Power Point Tracking of Photovoltaic Using Fuzzy Logic Control

2017 ◽  
Vol 7 (6) ◽  
pp. 3454 ◽  
Author(s):  
Doaa M. Atia ◽  
Hanaa T. El-madany
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Controller ◽  
Maximum Power Point Tracking ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Matlab Simulink ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulation Results ◽  
Power Point

It is important to have an efficient maximum power point tracking (MPPT) technique to increase the<em> </em>photovoltaic (PV) generation system output efficiency. This paper presents a design of MPPT techniques for<em> </em>PV module to increase its efficiency. Perturb and Observe method (P&amp;O), incremental conductance method (IC), and Fuzzy logic controller (FLC) techniques are designed to be used for MPPT. Also FLC is built using<em> </em>MATLAB/ SIMULINK and compared with the FLC toolbox existed in the MATLAB library. FLC does not<em> </em>need knowledge of the exact model of the system so it is easy to implement. A comparison between different<em> </em>techniques shows the effectiveness of the fuzzy logic controller techniques.  Finally, the proposed FLC is<em> </em>built in very high speed integrated circuit description language (VHDL). The simulation results obtained with<em> </em>ISE Design Suite 14.6 software show a satisfactory performance with a good agreement compared to obtained values from MATLAB/SIMULINK. The good tracking efficiency and rapid response to environmental parameters changes are adopted by the simulation results.

scholarly journals A new perturb and observe MPPT algorithm based on two steps variable voltage control

2021 ◽  
Vol 12 (4) ◽  
pp. 2201
Author(s):  
Hussain Attia ◽  
Suleyman Ulusoy
Keyword(s):  
Steady State ◽  
Steady State Response ◽  
Maximum Power Point ◽  
State Response ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Perturb And Observe ◽  
Simulation Results ◽  
Power Point ◽  
Incremental Step

Based on the fact that the effectiveness of perturb and observe algorithm in a maximum power point tracking maximum power point tracking (MPPT) in a photovoltaic array is a tradeoff between the tracking speed during the transient response and the oscillation around the stable level during the steady state response. To have a high tracking speed, incremental step should be high, but this high incremental step increases the oscillation level around the steady level of MPPT, whereas adopting low incremental step reduces the algorithm response time but improve the response during the steady state condition. This paper presents a new perturb and observe algorithm based on two step variable control for MPPT applications. A two variable incremental step control is proposed to gain the merit of high step for guaranteeing a fast response during tracking process, and also for guaranteeing the merit of low oscillation during the steady state working condition through adopting a low step during steady state response. The effectiveness of the proposal is proved by the analysis of the simulation results via MATLAB/Simulink software, and by the comparison of the simulation results with a conventional perturb and observe MPPT algorithm.

The Analysis and Implementation of the Double-Line Maximum Power Point Tracking Method

2012 ◽  
Vol 516-517 ◽  
pp. 797-803
Author(s):  
Zhao Liang Cheng ◽  
Shu Qin Liu ◽  
Wen Tao Yu ◽  
He Zhang Weng ◽  
Wen Shan Zhang
Keyword(s):  
Characteristic Curve ◽  
Maximum Power Point Tracking ◽  
Maximum Power ◽  
Pv System ◽  
Maximum Power Point ◽  
Double Line ◽  
Tracking Method ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

First this paper analyzes the model structure and the output characteristics of the photovoltaic (PV) module, and then we get the output characteristic curve using the parameter sheet. In this paper a simple, quick, and low cost Double-line MPPT ( maximum power point tracking) method and an simple temperature compensation method are proposed after analyzing and comparing the cell’s output features in terms of irradiance and temperature environment changes .The detailed process of the theoretical derivation and the simulation in MATLAB are provided. At last, the paper introduces the control strategy of the Double-line MPPT method. We conclude that Double-line MPPT method is Low-Complexity, easier to realize , faster without oscillation compared with other methods ,it can be used in low power PV system.

Research on the MPPT Control Strategy Based on the Former DC Convertor

2012 ◽  
Vol 614-615 ◽  
pp. 1328-1331
Author(s):  
Chun Qing Qi ◽  
Yi Ruan ◽  
Feng Wen Cao
Keyword(s):  
Control Strategy ◽  
The Novel ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulink Simulation ◽  
Power Generation System ◽  
The Mean ◽  
Power Point ◽  
Pv Power Generation

Maximum Power Point Tracking (MPPT) method is an important technology to improve the system efficiency of PV power generation system. This paper analyzes the methods and the principle of the MPPT. It proposes the mean of the incremental conductance to achieve the control strategy of the MPPT. The simulation study of boost circuit applied in the MPPT is completed based on Simulink simulation model. Based on those researches, this thesis can reduce the main drawbacks commonly related to the other method, at the same time, the simulation results verify that the novel MPPT algorithm can track PV array’s MPP efficiently and keep the system stabilize. The simulation result shows the validity of control strategy proposed.

An Algorithm to Detect Partial Shading Conditions in a PV System

2016 ◽  
Vol 856 ◽  
pp. 303-308 ◽  
Author(s):  
Efstratios Batzelis ◽  
Stavros A. Papathanassiou
Keyword(s):  
Characteristic Curve ◽  
Simple Algorithm ◽  
Global Maximum ◽  
Pv System ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Local Maxima ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

Multiple local maxima (MPPs) are presented on the P-V curve of a PV system under partial shading conditions. In general, standard maximum power point tracking (MPPT) algorithms have trouble locating the global maximum, leading often to suboptimal operation at a local MPP, and thus to decreased efficiency. In commercial inverters, this situation is mitigated by performing periodically scans of the characteristic curve to relocate the global MPP. However, this procedure entails fluctuation of the power output, as well as, short-term power losses. To limit these implications, a simple algorithm is introduced in this paper, which mathematically determines whether a PV system is partially shaded or not, thus avoiding unnecessary curve scans at uniform illumination. The proposed method needs only datasheet information and a temperature sensor, while it is applicable to any PV topology, multiple irradiance levels and is readily implemented as an enhancement to any existing MPPT algorithm.

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