Iterative Learning Control Systems

Sliding mode control (SMC) is a robust, precise and quite popular nonlinear control technique using a control signal having two parts: switching and equivalent control signals. In order to calculate the equivalent control signal, a model of the system to be controlled is necessary. However, modeling a system can be so…

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Permanent Magnet Synchronous Motors (PMSMs) are indispensable components of modern industrial systems, electric vehicles and renewable energy infrastructures due to their high efficiency, power density, wide speed range and superior torque to inertia ratio. However, maximizing the dynamic performance and energy effici…

Accurate motion tracking is a key requirement in three-dimensional printing systems, where deviations of the planar positioning stage directly degrade the accuracy of the deposited path. This study proposes an adaptive Bernstein polynomial based nonlinear tracking controller for a class of two axis Cartesian positioni…

Precision-stabilized pointing systems (PSPs) are commonly used in civil and military domains for line-of-sight (LOS) stabilization and control. PSP stabilization accuracy and speed-tracking performance are affected by various factors, such as the modal behavior of the vehicle/structure, stiffness of the components, dy…

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This work presents a backstepping type, prescribed time controller designed for precise velocity control of direct current motors. The controller ensures that the angular velocity of the system converges to a given desired velocity profile within a user defined prescribed time. The stability and boundedness of the con…

Servo motors are widely used in a broad range of applications, from industrial automation systems to robotics. The examination of servo motor mechanisms has a vital function in assessing the efficiency of industrial systems. This study investigates the performance of various machine learning models in classifying serv…

• İLKAY ÇINAR

A robust controller formulation for the precise end effector tracking of robot manipulators having uncertainties throughout its entire mechanical and actuator subsystems is presented. The formulated robust controller achieves practical end effector tracking, even in the presence of uncertainties in the kinematic and d…

• ENVER TATLICIOĞLU

This study presents the development of a novel servo-based synchronized control system designed to enhance the precision and productivity of lathe operations during the machining of globoid worm gears. To ensure high precision and compliance with quality standards, a servo motor and servo drive were integrated into th…

• MÜCAHİT SOYASLAN

Active ankle foot orthoses (AAFOs) are widely used in gait rehabilitation to assist patients with impaired dorsiflexion and plantarflexion control. Due to the cyclic and quasi-periodic nature of human walking, repetitive disturbances and tracking errors frequently arise from actuator dynamics, transmission nonlinearit…

• MOHAMMED I. F. MANSOUR

ABSTRACT Speed control of direct current (DC) motor systems still remains a challenging nonlinear control problem due to load disturbances, parameter uncertainties, and time‐varying operating conditions. Although conventional proportional integral derivative (PID) controllers are widely used because of their simple st…

• TİMUR LALE