Abstract
This paper proposes the design of a Robust Model Reference Adaptive Controller (RMRAC) with an adaptive Super-Twisting Sliding Mode (STSM) controller using a first order model reference, neglecting a pair of conjugated complex poles of the system plant (LCL filter). This control strategy is designed for current control of single-phase grid-tied inverters with LCL filter for weak grids and has been applied to a Voltage Source Inverter (VSI). Simulation results are presented to show the difference and advantages of this control strategy compared to a classical P+R controller and with an RMRAC with adaptive first order Sliding Mode (RMRAC-SM) controller.
Published Version
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