ABSTRACT
The flat linear permanent magnet synchronous motors (F-LPMSM) may be applied, in the long iron-core primary and short permanent magnet (PM) mover configuration, for industrial urban and interurban transportation. Short primary and long PM-secondary F-LPMSM configurations are used in short travel both in single-sided versions and in double-sided PM-secondary versions, when the normal force on the short primary is to be zero, in order to avoid noise, vibration, and large stray PM magnetic fields. The chapter discusses practical topologies, analytical and finite element method field theories for F-LPMSMs, cogging force computation and reduction, circuit parameters, and circuit models for dynamic and field oriented control and direct thrust and flux control. It describes a design methodology that is introduced by numerical example. The chapter considers a single-sided F-LPMSM with iron-core primary and investigates the PM and armature-reaction airgap fields and forces.
