Abstract
Abstract This paper presents a new robust super-twisting sliding mode control (STSMC) strategy for a standalone hybrid renewable energy system (HRES). A voltage source inverter (VSI) is used to connect these sources to alternative current (AC) loads at constant voltage and frequency. The effectiveness of the proposed control strategy is evaluated and tested under different scenarios of climate and load conditions, such as variations in wind speed, temperature, and irradiation, irregularity of the load power demand, unbalanced load, and nonlinear load. The performance of the STSMC controller is finally compared with the classical proportional-integral (PI) controller and with the first-order sliding mode controller (FOSMC) using a Matlab/Simulink environment. The simulation results show that the robustness and the stability of the whole system are widely improved using STSMC rather than other classical approaches.
Published Version
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