High-Order Sliding-Mode Control of Variable-Speed Wind Turbines

Abstract

International audienceThis paper deals with the power generation control in variable-speed wind turbines. These systems have two operation regions which depend on wind turbine tip speed ratio. A high-order sliding-mode control strategy is then proposed to ensure stability in both operation regions and to impose the ideal feedback control solution in spite of model uncertainties. This control strategy presents attractive features such as robustness to parametric uncertainties of the turbine. The proposed slidingmode control approach has been validated on a 1.5-MW threeblade wind turbine using the National Renewable Energy Laboratory wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Validation results show that the proposed control strategy is effective in terms of power regulation.Moreover, the sliding-mode approach is arranged so as to produce no chattering in the generated torque that could lead to increased mechanical stress because of strong torque variations

A fault-tolerant multiphase permanent magnet generator for marine current turbine applications

“…High-order sliding mode approach suggests treating the chattering effect using a time derivative of control as a new control, thus integrating the switching [13]. Up to now, a few second-order sliding mode control approaches have been introduced for wind and marine applications [7], [14][15].…”

“…The exception is the super twisting algorithm, which only needs information about the sliding surface S. Therefore, the proposed control approach has been designed using this algorithm. The proposed second-order sliding mode controller contains two parts: In order to ensure the convergence of the sliding manifolds to zero in finite time, the gains can be chosen as follows [14].…”

High-Order Sliding Mode control for DFIG-based Wind Turbine Fault Ride-Through

“…Indeed, the main and attractive features of HOSMs are robustness against external disturbances (e.g. grid) and chattering-free behavior (no extra mechanical stress on the drive train) [8][9][10].…”

Non-linear control of variable-speed wind turbines with permanent magnet synchronous generators: a robust backstepping approach

“…Recently high-order sliding-mode controllers have also been applied to variable-speed wind turbines (Beltran, Ahmed-Ali, and Hachemi Benbouzid 2009; Morfin, Loukianov, Canedo, and Castellanos 2010). In Beltran et al (2009), authors applied a second-order sliding-mode controller for the power generation control in variable-speed wind turbines. The proposed sliding-mode methodology was effective in terms of power regulation despite the parametric uncertainties in the turbine and the generator.…”