Assessment of maximum power point trackers performance using direct and indirect control methods

Kermadi, Mostefa; Mekhilef, Saad; Salam, Zainal; Ahmed, Jubaer; Berkouk, El Madjid

Abstract

The direct and indirect control methods are commonly used for maximum power point tracker (MPPT) of photovoltaic (PV) systems. Due to the absence of the literature that assess their performance in a comprehensive way, this work attempts to analyze the effectiveness of both control methods for the perturb and observe (P&O) MPPT algorithm. The MATLAB/Simulink simulation is verified experimentally using a PV array simulator and the dSPACE DS1104 DSP board driving a buck-boost converter. The results show that the indirect method exhibits lower steady-state oscillation and is less sensitive to rapid irradiance change and load variations. It increases the steady-state efficiency by 1.6%. Furthermore, under irradiance and load step changes, the transient efficiency increases by 29% and 30%, respectively. Based on these findings, it is envisaged that the indirect method is more suitable to be used as the controller in conjunction with the MPPT algorithm.

Citation

Kermadi, M., Mekhilef, S., Salam, Z., Ahmed, J., & Berkouk, E. M. (2020). Assessment of maximum power point trackers performance using direct and indirect control methods. International Transactions on Electrical Energy Systems, 30(10), Article e12565. https://doi.org/10.1002/2050-7038.12565

• Journal Article Type: Article
• Acceptance Date: Jul 6, 2020
• Online Publication Date: Aug 24, 2020
• Publication Date: 2020-10
• Deposit Date: Dec 28, 2021
• Journal: International Transactions on Electrical Energy Systems
• Electronic ISSN: 2050-7038
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 30
• Issue: 10
• Article Number: e12565
• DOI: https://doi.org/10.1002/2050-7038.12565
• Keywords: direct control, indirect control, maximum power point tracking, perturb and observe, photovoltaic system
• Public URL: http://researchrepository.napier.ac.uk/Output/2823410