Assessment of maximum power point trackers performance using direct and indirect control methods. (24th August 2020)

• Record Type: Journal Article
• Authors: Kermadi, Mostefa; Mekhilef, Saad; Salam, Zainal; Ahmed, Jubaer; Berkouk, El Madjid
• Is Part Of: International transactions on electrical energy systems. Volume 30:Number 10(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-08-24
• Subjects: direct control -- indirect control -- maximum power point tracking -- perturb and observe -- photovoltaic system; Electric power -- Periodicals; Electric power systems -- Periodicals; Electrical engineering -- Periodicals; 621.3
• DOI: 10.1002/2050-7038.12565
• Languages: English
• ISSNs: 2050-7038

Abstract

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. Abstract : The present work assesses the performance of direct and indirect control methods used for maximum power point tracking (MPPT) of photovoltaic systems. The effectiveness of both control methods are comprehensively analyzed using the perturb and observe (P&O) MPPT algorithm as an example application. The results show that the indirect method exhibits lower steady‐state oscillation and is less sensitive to rapid irradiance change and load variations.