scholarly journals A Novel Bat Algorithm Strategy for Maximum Power Point Tracker of Photovoltaic Energy Systems Under Dynamic Partial Shading

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 10048-10060 ◽  
Author(s):  
Ali M. Eltamaly ◽  
M. S. Al-Saud ◽  
Ahmed G. Abokhalil
Keyword(s):  
Energy Systems ◽  
Bat Algorithm ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Photovoltaic Energy ◽  
Maximum Power Point Tracker ◽  
Power Point

scholarly journals A New MPPT Algorithm for Photovoltaic Power Generation under Uniform and Partial Shading Conditions

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 483
Author(s):  
Novie Ayub Windarko ◽  
Muhammad Nizar Habibi ◽  
Bambang Sumantri ◽  
Eka Prasetyono ◽  
Moh. Zaenal Efendi ◽  
...  
Keyword(s):  
Power Generation ◽  
Duty Cycle ◽  
Operating Conditions ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Photovoltaic Panel ◽  
Maximum Power Point Tracker ◽  
Photovoltaic Power ◽  
Power Point

During its operation, a photovoltaic system may encounter many practical issues such as receiving uniform or non-uniform irradiance caused mainly by partial shading. Under uniform irradiance a photovoltaic panel has a single maximum power point. Conversely under non-uniform irradiance, a photovoltaic panel has several local maximum power points and a single global maximum power point. To maximize energy production, a maximum power point tracker algorithm is commonly implemented to achieve the maximum power operating point of the photovoltaic panel. However, the performance of the algorithm will depend on operating conditions such as variation in irradiance. Presently, most of existing maximum power point tracker algorithms work only in a single condition: either uniform or non-uniform irradiance. This paper proposes a new maximum power point tracker algorithm for photovoltaic power generation that is designed to work under uniform and partial shading irradiance conditions. Additionally, the proposed maximum power point tracker algorithm aims to provide: (1) a simple math algorithm to reduce computational load, (2) fast tracking by evaluating progress for every single executed duty cycle, (3) without random steps to prevent jumping duty cycle, and (4) smooth variable steps to increase accuracy. The performances of the proposed algorithm are evaluated by three conditions of uniform and partial shading irradiance where a targeted maximum power point is located: (1) far from, (2) near, and (3) laid between initial positions of particles. The simulation shows that the proposed algorithm successfully tracks the maximum power point by resulting in similar power values in those three conditions. The proposed algorithm could handle the partial shading condition by avoiding the local maxima power point and finding the global maxima power point. Comparisons of the proposed algorithm and other well-known algorithms such as differential evolution, firefly, particle swarm optimization, and grey wolf optimization are provided to show the superiority of the proposed algorithm. The results show the proposed algorithm has better performance by providing faster tracking, faster settling time, higher accuracy, minimum oscillation and jumping duty cycle, and higher energy harvesting.

Neural Modeling of Fuzzy Controllers for Maximum Power Point Tracking in Photovoltaic Energy Systems

2018 ◽  
Vol 47 (8) ◽  
pp. 4519-4532 ◽  
Author(s):  
Jose Manuel Lopez-Guede ◽  
Josean Ramos-Hernanz ◽  
Necmi Altın ◽  
Saban Ozdemir ◽  
Erol Kurt ◽  
...  
Keyword(s):  
Maximum Power Point Tracking ◽  
Energy Systems ◽  
Maximum Power ◽  
Neural Modeling ◽  
Maximum Power Point ◽  
Fuzzy Controllers ◽  
Photovoltaic Energy ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

scholarly journals Bat algorithm based maximum power point tracking for photovoltaic system under partial shading conditions

Solar Energy ◽  
2017 ◽  
Vol 158 ◽  
pp. 490-503 ◽  
Author(s):  
Karim Kaced ◽  
Cherif Larbes ◽  
Naeem Ramzan ◽  
Moussaab Bounabi ◽  
Zine elabadine Dahmane
Keyword(s):  
Maximum Power Point Tracking ◽  
Bat Algorithm ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point
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