in the permanent magnet linear synchronous motor (pmlsm), force ripple is harmful, useless and disturbing. the force ripple is basically composed of two components: detent force and mutual force ripple. this force is influenced by the geometric parameters of the permanent magnet (pm) motors; such as width, thickness and length of the magnet poles, length and thickness of the rotor and stator, a...

The Lorentz force law is proposed as an alternative to the Maxwell stress tensor calculate torque of ironless axial flux permanent magnet (AFPM) motor. This allows calculating only magnetic field produced by magnets. A model this based on one magnet, superposition principle, and geometric transformations proposed. method for single inspired finite elements, reduce calculation time. validated 3-...

Direct drive permanent magnet machines used in renewables typically have high numbers of poles leading to low speeds. This poses a challenge for detection faults during transients, while few periods the operating waveforms can be captured. Moreover, it has been recently shown that and stator coils determine demagnetization harmonic generation mechanism consequently location fault signatures. le...

In this paper, the dual-stator axial-field flux-switching permanent magnet (DSAFFSPM) motors with E- and U-core stator modular segments, as well different stator/rotor-pole combinations are compared. The operation performance of DSAFFSPM machines explored by using MMF-permeance model method. A more comprehensive theoretical analysis, no limited to numerical calculation, is presented. This revea...

Flux switching motor is a type of electric machine that locates both flux source and armature windings on the stator leaving its rotor a simple piece of iron. This machine was developed by combining the toothed stator structure of induction machine and the toothed rotor structure of switched reluctance machine together. Furthermore, it has three types of flux sources which include permanent mag...

This paper presents a two-dimensional analytical model for brushless double-rotor flux-switching permanent magnet machines (BDRPFSPMM) with yokeless stator recognized as type of partitioned-structure that is an appropriate machine to be employed the electric motor in industry. The most salient advantages proposed are low iron loss due volume and high space slot winding. radial tangential compon...