Nonlinear Lyapunov Control of a Photovoltaic Water Pumping System

Khalil Jouili and Adel Madani ()
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Khalil Jouili: Laboratory of Advanced Systems, Polytechnic School of Tunisia (EPT), P.O. Box 743, Marsa 2078, Tunisia
Adel Madani: Physics Department, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia

Energies, 2023, vol. 16, issue 5, 1-13

Abstract: In this study, we present an alternative maximum power point tracking technique used in a solar water pumping system to produce the maximum power for modifying the amount of pumped water. This technique was actually created primarily to regulate the duty ratio of the buck converter. In order to control the solar array operating point in order to track the maximum power point, a nonlinear control approach based on the input–output feedback linearizing technique and the Lyapunov stability theory is used. By adjusting the irradiation level, the introduced controller-containing photovoltaic generator direct current (DC) motor pump system was put to the test. Our control method was modeled in Matlab-Simulink, and simulation results were used to show that it significantly outperformed a directly connected solar generator-energized pumps operational system in terms of power extraction performance under various sunlight conditions.

Keywords: photovoltaic water pumping system; maximum power point tracking; buck converter; nonlinear control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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