Comparison of Analytical Methodologies for Analysis of Single Sided Linear Permanent Magnet Flux Switching Machine: No-Load Operation.

A novel single sided Linear Permanent Magnet Flux Switching Machine (LPMFSM) with twelve mover slots and fourteen stator teeth (12/14), having two additional end teeth on both sides of mover is presented. Presence of both Armature Winding (AW) and Permanent Magnet (PM) on mover structure results in completely passive, robust, and low cost stator. While, demerits such as less slot area, complex flux density distribution, and magnetic saturation caused by passive stator demands to be analyzed by time consuming and computationally complex numerical modelling techniques, i.e., Finite Element (FE) Analysis, requiring expensive hardware/software. In this paper, two cost effective and fast response analytical techniques are developed to analyze no-load performance of LPMFSM. Two no-load characteristics, i.e., open-circuit flux linkage and detent force are analyzed by Equivalent Magnetic Circuit (termed as analytical technique No. 1) and Lumped Parameter Equivalent Magnetic Circuit (termed as analytical technique No. 2). Both analytical methodologies are compared and validated with corresponding globally accepted FE Analysis. Analysis revealed that LPEMC is better approach for initial design of LPMFSM. [ABSTRACT FROM AUTHOR]