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Position Control of Linear Synchronous Motor Drives with Exploitation of Forced Dynamics Control Principles

Jan Vittek, Peter Buchner, Stephen J. Dodds

DOI:


Abstract

Closed-loop position control of mechanisms directly driven by linear synchronous motors with permanent magnets is presented. The control strategy is based on forced dynamic control, which is a form of feedback linearisation, yielding a non-liner multivariable control law to obtain a prescribed linear speed dynamics together with the vector control condition of mutal orthogonality between the stator current and magnetic flux vectors (assuming perfect estimates of the plant parameters). Outer position control loop is closed via simple feedback with proportional gain. Simulations of the design control sysstem, including the drive with power electronic switching, predict the intended drive performance.

Keywords


Power; synchronous motors; control; linear speed.

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