Supplementary Files
Keywords
sliding mode
anthropomorphic robot
manipulator robot
robustness
trajectory tracking
simulation
super-twisting
tuning
disturbances
algorithms
kinematics
control
geometric approach
proportional derivative control de movimiento
modos deslizantes
robot antropomórfico
robot manipulador
robustez
seguimiento de trayectoria
simulación
super-twisting
sintonización
perturbaciones
algoritmos
cinemática
control
enfoque geométrico
proporcional derivativo
How to Cite
Abstract
This work solves the regulation and tracking trajectories tasks for four degrees of freedom anthropomorphic robot manipulators. Two controllers are considered: a Super-Twisting controller (ST) and a Proportional Derivative with dynamics compensation (PD+) control. This comparison is carried out through numeric simulation of the dynamic model in the presence of disturbances using Matlab-Simulink software. Also, the tuning procedure of each controller is shown, as well as the stability criteria used for each case. The tunning of the ST controller is done considering the effects produced by an unknown Lipschitz disturbance; this guarantees robustness against this kind of disturbance. The results of the ST controller show the rejection of the disturbance, allowing the correct trajectory tracking. An algorithm based on the inverse kinematics solution is used to generate trajectories and their interpretation in generalized coordinates corresponding to the manipulator’s joint positions obtained through the geometric approach. In addition, we show the workspace, the manipulator parameterization, and the manipulator dynamic model through the Euler-Lagrange motion equations.
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