Many control methodologies have been applied to the motion control of linear motor drive
systems. Compensations of nonlinearities such as frictions and cogging forces have also …

In this paper, the feedforward controller design problem for high-precision
electromechanical servo systems that execute finite time tasks is addressed. The presented …

The main goal of this investigation is to improve the tracking accuracy of the stage of a linear
motor. A DC brushless linear motor is used to actuate a gantry stage to perform printing. To …

In this paper, a robust PID control scheme is proposed for the permanent magnet
synchronous motor (PMSM) using a genetic searching approach. Genetic algorithms (GAs) …

In this paper, for periodic motion tasks, combining adaptive PID-type sliding mode control
(APIDSMC), model reference adaptive control (MRAC) and periodic adaptive learning …

To realize the high performance potential of linear motor drive systems, various
nonlinearities inherited to the system and their compensations have been extensively …

This paper proposes a new model for cogging forces of linear motor systems. Sinusoidal
functions of positions are used to effectively capture the largely periodic nature of cogging …

The tracking performance of a motion system based on a permanent-magnet linear motor
(PMLM) is greatly affected by nonlinearities present, such as force ripples and frictions …

This paper studies the precision motion control of a high-speed/acceleration linear motor
driven commercial gantry which is subject to significant nonlinear cogging forces. A …

Fractional calculus is a generalization of the integration and differentiation to the fractional
(non-integer) order. In this paper, for the first time, a fractional order robust control (FO-RC) …