Dynamic characteristics for position control of permanent magnet linear synchronous motor with control parameters

This paper presents dynamic characteristics by position control in servo application of permanent magnet linear synchronous machine with double-side PM mover and slotless iron-cored stator. In our analysis for motor parameters, we adopt the generalized magnetic vector potential with space harmonics calculated from the transfer relations and boundary conditions. This analysis gives analytical formulae for estimation of dynamic motor parameters such as flux linkage, inductance, and back electromotive force, etc. And, to satisfy the required thrust and speed in servo application, the dynamic analyses are considered by the us cubic limits of the DC link voltage and dynamic operating range in a point of system. Finally, this paper presents dynamic characteristics of position control through speed reference profile and control parameters. The results of analytical solutions are verified by finite element method (FEM) and experiment. Especially, in experiments for dynamic characteristics of the manufactured motor, we used the fixed-point DSP with 12 bit D/A in 2.5 V range.