Real-Time Sensorless Robust Velocity Controller Applied to a DC-Motor for Emulating a Wind Turbine

The wind power systems of variable velocity using a doubly-fed induction generator dominate large-scale electrical generation within renewable energy sources. usual control goal the consists maximizing capture and streamlining conversion process. In addition, these are an intermittent source due to variation velocity. Consequently, system designed establish reliable operation represents main challenge. Therefore, emulating turbine by means electric motor is common strategy so that controller design focused on its connection utility grid. Thus, we propose emulate dynamical through separately excited DC driving sensor-less controller. This synthesized based state-feedback linearization technique combined with super-twisting algorithm set robust closed-loop in presence external disturbances. A observer estimate rotor armature current measuring. Furthermore, differentiator for estimating time derivative error variable, achieving reduction computational calculus. Experimental tests were carried coupled dynamometer validate proposed emulator.