Nonlinear Backstepping Control of a Quadrotor-Slung Load System

2019 ◽  
Vol 24 (5) ◽  
pp. 2304-2315 ◽  
Author(s):  
Gan Yu ◽  
David Cabecinhas ◽  
Rita Cunha ◽  
Carlos Silvestre
Keyword(s):  
Backstepping Control ◽  
Nonlinear Backstepping Control

NONLINEAR BACKSTEPPING CONTROL FOR THE FUEL DIFFUSION LAG IN FUSION REACTORS

2002 ◽  
Vol 35 (1) ◽  
pp. 113-118 ◽  
Author(s):  
Eugenio Schuster ◽  
Miroslav Krstić ◽  
George Tynan
Keyword(s):  
Backstepping Control ◽  
Fusion Reactors ◽  
Nonlinear Backstepping Control

scholarly journals Nonlinear Backstepping Control of Permanent Magnet Synchronous Motor with Rotor Speed and Position Estimation

2018 ◽  
Vol 3 (3) ◽  
pp. 133-142
Author(s):  
Abderrahmen KIRAD ◽  
Said Grouni ◽  
Omar MECHALI
Keyword(s):  
Permanent Magnet ◽  
High Performance ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Backstepping Control ◽  
Position Estimation ◽  
Nonlinear Feedback ◽  
Precise Knowledge ◽  
The Stability ◽  
Nonlinear Backstepping Control

This paper presents a nonlinear backstepping control strategy used to ensure good dynamic behavior, high performance and the stability of the permanent magnet synchronous motor (PMSM). However, this control requires the precise knowledge of certain variables (speed, torque and position) that are difficult to access or sensors require additional mounting space, reduce reliability, increase the cost of the engine, and make maintenance difficult. Thus, an Extended Kalman Filter (EKF) approach is proposed for the estimation of speed and rotor position in the PMSM. The interesting simulation results obtained which are subjected to the load perturbation show very well the efficiency and the good performance of the nonlinear feedback control proposed and simulated in Matlab-Simulink.

Nonlinear backstepping control for PMSG wind turbine used on the real wind profile of the Dakhla‐Morocco city

2020 ◽  
Vol 30 (4) ◽  
Author(s):  
Youness El Mourabit ◽  
Aziz Derouich ◽  
Abdelaziz El Ghzizal ◽  
Najib El Ouanjli ◽  
Othmane Zamzoum
Keyword(s):  
Wind Turbine ◽  
Wind Profile ◽  
Backstepping Control ◽  
The Real ◽  
Nonlinear Backstepping Control

scholarly journals Nonlinear Backstepping Control Design for Coupled Nonlinear Systems under External Disturbances

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Wonhee Kim ◽  
Chang Mook Kang ◽  
Young Seop Son ◽  
Chung Choo Chung
Keyword(s):  
Nonlinear Systems ◽  
Sliding Mode Control ◽  
Sliding Mode ◽  
Backstepping Control ◽  
State Variables ◽  
External Disturbances ◽  
Mode Control ◽  
Disturbance Cancellation ◽  
The Stability ◽  
Nonlinear Backstepping Control

A nonlinear backstepping control is proposed for the coupled normal form of nonlinear systems. The proposed method is designed by combining the sliding-mode control and backstepping control with a disturbance observer (DOB). The key idea behind the proposed method is that the linear terms of state variables of the second subsystem are lumped into the virtual input in the first subsystem. A DOB is developed to estimate the external disturbances. Auxiliary state variables are used to avoid amplification of the measurement noise in the DOB. For output tracking and unmatched disturbance cancellation in the first subsystem, the desired virtual input is derived via the backstepping procedure. The actual input in the second subsystem is developed to guarantee the convergence of the virtual input to the desired virtual input by using a sliding-mode control. The stability of the closed-loop is verified by using the input-to-state stable (ISS) property. The performance of the proposed method is validated via numerical simulations and an application to a vehicle system based on CarSim platform.

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