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Experimental verification of the one-phase linear actuator with permanent magnets for robotic system applications

Just K., Piskur P., Bielawski R.

Measurement Automation Monitoring

2017

Vol. 63, No. 7

238--241

In this paper an experimental results of a static and transient characteristics of the linear motor is to be presented. The linear motor consists of the one cylindrical unmovable coil surrounded by a soft ferromagnetic case and a moveable core made from sequence of ferromagnetic and permanent rings. The model of the linear motor is to be presented with mechanical, electrical and magnetic consideration. At the end of this paper the experimental results are presented with focus on static magnetic force and transient response for a series input voltage steps. The aim of this investigation it was to check the static and dynamic characteristics and assume the usability for application in robotic systems.

Optimisation of an electromagnetic linear actuator operating in error actuated control system

Nowak L., Radziuk K., Knypiński Ł.

Poznan University of Technology Academic Journals. Electrical Engineering

2007

No 56

49-60

In the paper an algorithm and computer software for the optimisation of error actuated control systems containing an electromagnetic linear actuator is presented. The software consists of two main parts: (a) optimisation solver and (b) numerical model of the actuator. For the optimisation the genetic algorithm (GA) has been used. The field-circuit discrete mathematical model of the actuator has been employed. The model includes: (a) the equation of a transient electromagnetic field, (b) equations which describe electric circuit of the actuator, (c) the equation of mechanical motion and (d) the equation describing the feedback - including the proportional-plus-integral-plus-derivative (PID) controller.