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

Abstract

Abstract-This paper deals with the Fault Ride-Through (FRT) capability assessment of a Doubly-Fed Induction Generator (DFIG)-based Wind Turbine (WT) using High-Order Sliding Mode (HOSM) control. Indeed, it has been recently suggested that sliding mode control is a solution of choice to the FRT problem. In this context, this paper proposes HOSM as an improved solution that handle the classical sliding mode chattering problem. 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).Simulations using the NREL FAST code on a 1.5-MW wind turbine are carried-out to evaluate ride-through performance of the proposed HOSM control strategy in case of grid frequency variations and unbalanced voltage sags.

Multiple‐input–multiple‐output high‐order sliding mode control for a permanent magnet synchronous generator wind‐based system with grid support capabilities

“…This controller is designed from the SOSM theoretical framework which is very appropriate to deal with systems described by uncertain non-linear dynamic models subjected to external perturbations. In particular, this technique generates robust and simple controllers with reduced chattering effects on the sliding surfaces and, in the specific case of STwA realisations, synthesising continuous control actions [17,18,21]. The resultant controllers do not depend on the system parameter values and naturally assimilate their bounded temporal drifts.…”

“…This theoretical framework presents a set of attractive advantages that cover most of the requirements necessary for this case. Briefly, the resultant controllers have a high robustness degree to unmodelled dynamics and continuous bounded perturbations, present a bounded and finite reaching time, have a very simple structure with a low computational burden, are very appropriate to successfully deal with the control design for non-linear complex systems and, ideally, they do not present ripple (chattering) on the sliding surfaces [17][18][19].…”

Second-order sliding mode control for DFIG-based wind turbines fault ride-through capability enhancement

“…To ensure the sliding manifolds convergence to zero in finite times, the gains B 1 , B 2 , B 3 , and B 4 can be chosen as follows [19][20] (15) In this context, it can be asserted that there exist finite times t Tem and t Ird leading to (16). This means that the control objective is achieved.…”

“…Therefore and in this particular context, this paper proposes the use of high-order sliding mode control as an improved solution that handles the classical sliding mode chattering problem and particularly avoids using additional devices and converter oversizing. Indeed, the main and attractive features of HOSMs are robustness against external disturbances (grid faults) and chattering-free behavior (no extra mechanical stress on the drive train) [14][15][16]. The proposed control strategy combines an MPPT using a second-order sliding mode for the DFIG control [17][18].…”

Sliding Mode Control of Double Inverted Pendulum Based on a Novel Approach Law

“…[2] A high-order sliding mode(HOSM) control is proposed to handle the chattering problem with the chattering-free behavior and robustness against external disturbances. [4] A robust discretetime SMC algorithm coupled with an uncertainty estimator based on sliding modes is used for a planar robotic manipulator. Good tracking performance and robustness are obtained when payload perturbations and inaccuracies disturbances exist.…”