Efficiency Maximization of the Air Core Double-Sided Permanent Magnet Linear Synchronous Motor

Air core permanent magnet linear synchronous motor (ACPMLSM) recommended for applications in which the accurate control of speed and position is required. Omission of the core in the primary of the motor reduces the detent force and increases the controllability of the motor. In this paper, the flux density of different parts of an ACPMLSM is calculated using both the Maxwell's equations and finite element method (FEM). A precise flux density model is presented and the design of the air core double sided permanent magnet linear synchronous motor is optimized for the efficiency maximization using the genetic algorithm method.