A Novel MPP Estimation Technique for DDM PV Array Under Different Solar Irradiance Conditions

This article derives a new explicit expression of current of a double-diode model (DDM) photovoltaic (PV) module from the implicit current-voltage (I-V) expression. Here, the exponential term of the I-V expression of a DDM PV module is represented by Taylor series. The validation is done on the impl...

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Bibliographic Details
Published in:IEEE transactions on sustainable energy 2023-10, Vol.14 (4), p.1-14
Main Authors: Tripathi, Shivam, Chopra, Sarthak, Sahu, Himanshu Sekhar, Mishra, Mahesh K., Kumar, Shashank, Nayak, Sisir Kumar
Format: Article
Language:English
Subjects:
Algorithms
Arrays
Complexity theory
Configurations
double diode model (DDM)
Environmental conditions
Estimation
Genetic algorithms
Integrated circuit modeling
Irradiance
Mathematical models
Maximum power
maximum power point (MPP)
Photovoltaic (PV) array
Photovoltaic cells
Photovoltaics
Radiation effects
Search algorithms
Shading
Taylor series
totally cross tied (TCT) configuration
Voltage
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Summary:This article derives a new explicit expression of current of a double-diode model (DDM) photovoltaic (PV) module from the implicit current-voltage (I-V) expression. Here, the exponential term of the I-V expression of a DDM PV module is represented by Taylor series. The validation is done on the implicit I-V expression with the derived quartic I-V explicit expression for PV modules of different rating under different environmental conditions (DEC). The estimation of maximum power point (MPP) is done using one dimensional Newton Raphson (NR) algorithm in the MPP region and proposed explicit expression. The proposed technique is also compared with the different existing MPP estimation techniques for DEC. The results show better accuracy of the proposed technique over the existing methods. Finally, a new mathematical model of totally cross tied (TCT) configuration of a PV array under partially shaded conditions is derived and the global MPP is estimated using an intelligent search algorithm i.e., genetic algorithm. Further, a 315 W PV module was considered for real time validation of the proposed technique under uniform irradiance condition. Also, the calculated global MPP of a DDM PV array of TCT configuration is validated with experimental results for different shading conditions.
ISSN:1949-3029
1949-3037
DOI:10.1109/TSTE.2023.3294809