Advanced MPPT Controller Based on P&O Algorithm with Variable Step Size and Acceleration Mechanism for Solar Photovoltaic System

2016 ◽  
pp. 57-67 ◽  
Author(s):  
Sanae Dahbi ◽  
Abdelhak Aziz ◽  
Naima Benazzi ◽  
Mohamed Elhafyani ◽  
Nourddine Benahmed
Keyword(s):  
Photovoltaic System ◽  
Variable Step Size ◽  
Solar Photovoltaic ◽  
Step Size ◽  
Acceleration Mechanism ◽  
Variable Step ◽  
Mppt Controller ◽  
Solar Photovoltaic System

scholarly journals Estimating Efficiency of MPPT Techniques by Chattering Examination

2019 ◽  
Vol 9 (1S) ◽  
pp. 43-47
Keyword(s):  
Photovoltaic System ◽  
Variable Step Size ◽  
Step Size ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Incremental Conductance ◽  
Conductance Method ◽  
Variable Step ◽  
Power Point ◽  
Solar Photovoltaic System

Increasing the efficiency of MPPT techniques is the essential aspects of the Solar Photovoltaic System. This efficiency is affected by the chattering available with the MPPT techniques. An MPP technique which generates less chattering in the system is more efficient than the others. This paper presents the chattering analysis of the popular Maximum Power Point Tracking (MPPT) techniques Perturb & Observe (P&O) and Incremental conductance method for the fixed and variable step size. The algorithms are simulated under similar load and environment conditions. In the result it is found that the incremental conductance method has very less chattering in comparison with the P&O for the fixed step size and variable step size. Further, for the different solar radiation chattering is observed and tabulated

Optimization Design of Photovoltaic System MPPT Controller

2014 ◽  
Vol 571-572 ◽  
pp. 940-943 ◽  
Author(s):  
Ping Liu ◽  
Wan Yu Diao
Keyword(s):  
Optimization Design ◽  
Dynamic Performance ◽  
Photovoltaic System ◽  
Variable Step Size ◽  
Step Size ◽  
Pv Cell ◽  
State Point ◽  
Variable Step ◽  
Mppt Controller ◽  
Simulation Results

By employing INC algorithm based on power estimates and variable step ,the MPPT controller can optimize the judgement if the PV cell can reach the MPP, using the comparison between estimate power and realistic power and optimize the variable step size algorithm judging by the position of work state point . The simulation results show that the controller still has good dynamic performance even when irradiance changes sharply.

scholarly journals Variable Step Size P&O MPPT Controller to Improve Static and Dynamic PV System Performances

2018 ◽  
Vol 2 (2) ◽  
pp. 86 ◽  
Author(s):  
Hamza Bahri ◽  
Abdelghani Harrag
Keyword(s):  
Photovoltaic System ◽  
Variable Step Size ◽  
Atmospheric Conditions ◽  
Step Size ◽  
Pv System ◽  
Solar Module ◽  
Creative Commons ◽  
Study Results ◽  
Variable Step ◽  
Steady State Oscillation

In this paper, a variable step size P&O algorithm is used in order to improve the performance of a photovoltaic system in both dynamic and static plans. The efficiency of the proposed algorithm has been investigated successfully using the BP SX150S solar module connected to the DC-DC derived by a P&O MPPT algorithm. The comparative study results of both conventional fixed step size and the proposed variable step size P&O algorithms prove the effectiveness of the proposed algorithm compared to the standard fixed step size PO MPPT. The proposed algorithm reduces response time between 13.86% and 45.28% and the steady state oscillation between 83.33% and 100% leading to less power loss especially in case of fast changing atmospheric conditions.  This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals Photovoltaic MPPT Algorithm Based on Hybrid Boost Converter and Variable Step Size Incremental Conductance

2021 ◽  
Vol 299 ◽  
pp. 01013
Author(s):  
Yiwei Ma ◽  
Fuxing Wang ◽  
Zongsheng Huang ◽  
Qin Feng ◽  
Changhao Piao
Keyword(s):  
Low Voltage ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Variable Step Size ◽  
Tracking Accuracy ◽  
Step Size ◽  
Point Tracking ◽  
Incremental Conductance ◽  
Variable Step ◽  
Power Point

Aiming at the problem of low voltage gain of traditional boost converter and the incompatibility of tracking speed and tracking accuracy with the traditional incremental conductance algorithm (INC), this paper uses the hybrid boost converter as the DC/DC converter of photovoltaic system, and designs the variable step size INC algorithm control strategy to achieve Maximum power point tracking (MPPT) of photovoltaic. Simulink simulation model verifies the feasibility of the proposed algorithm, which effectively improves the output voltage and power generation efficiency of the photovoltaic system.

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