An adaptive P&O MPPT using a sectionalized piece-wise linear PV curve

Ashique, Ratil H; Salam, Zainal; Ahmed, Jubaer

Abstract

This paper describes the adaptive perturb and observe (P&O) MPPT controller based on a sectionalized piece-wise linearization of the P-V curve. The algorithm divides the curve into three non-uniform sections, depending on the location of the maximum power point (MPP). Furthermore, the step size (M) is varied linearly according to the slope of the P-V curve. This results in high tracking speed and reduced steady state oscillations, along with rapid adjustment for the change in weather conditions. The proposed algorithm is implemented using a unidirectional buck-boost DC/DC converter. The model is simulated in MATLAB® Simulink environment for validation. Its efficiency is found to be higher than the conventional P&O MPPT with the fixed step size.

Citation

Ashique, R. H., Salam, Z., & Ahmed, J. (2015, October). An adaptive P&O MPPT using a sectionalized piece-wise linear PV curve. Presented at 2015 IEEE Conference on Energy Conversion (CENCON), Johor Bahru, Malaysia

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 2015 IEEE Conference on Energy Conversion (CENCON)
• Start Date: Oct 19, 2015
• Online Publication Date: Feb 18, 2016
• Publication Date: 2015
• Deposit Date: Mar 10, 2025
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Pages: 474-479
• Book Title: 2015 IEEE Conference on Energy Conversion (CENCON)
• DOI: https://doi.org/10.1109/CENCON.2015.7409591
• Public URL: http://researchrepository.napier.ac.uk/Output/4130022