A PV water desalination system using backstepping approach

Abstract

This This paper involves a nonlinear control of photovoltaic system under changeable environmental conditions such as temperature and solar irradiance. The PV system (water desalination system) consists of the photovoltaic source which is feeding a resistor load (evaporator). The evaporator connected to a condenser. The control objective is to extract the maximum power from the PV generator by acting on the DC/DC converter (MPPT). The whole system is modulated and controlled by using the backstepping approach and tools from Lyapunov stability. The simulation results have been performed through Matlab/Simulink environment and show that the designed controller meets its objective.