Axial field flux-modulation permanent magnet (AF-FMPM) machines have been developed for direct drive applications such as wind power generation, HEVs, and railway traction. However, the existing studies on AF-FMPM are limited to PM rotor structure, less research has carried out with stator structure. This paper two axial machines, i.e., NS or NN type, which all consist of same structures but du...

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 stato...

Several approaches are available to reduce pulsating torque components in permanent magnet motors. One of the known techniques is stator tooth shape modifications. This paper presents an integrated algorithm applicable for tooth shape optimization of permanent magnet motors. This method focuses on the reduced basis technique, finite element analysis and Taguchi method and is conducted on tooth ...

To get a better electromagnetic performance of an axial flux permanent magnet brushless DC motor (AFPMBLDC), AFPMBLDC with arc-shaped magnets and its multi-objective optimization design are researched. Firstly, the main parameters proposed, initial designs carried out according to given requirements. Furthermore, pole arc coefficient, thickness, radius, air-gap length selected as factors. Then,...

This paper studies the torque production mechanism of dual-stator axial-field flux-switching permanent magnet (DSAFFSPM) machine. Due to double-sided slotting design such topology, more resultant air-gap working harmonics in flux density are responsible for and stator permeance is especially considered investigation. Based on magnetic force (MMF)-permeance model, composition difference demonstr...

A high-temperature superconducting (HTS) axial flux permanent magnet (AFPM) machine was designed, using bulks over the rotor surface and rare-earth magnets in middle of stator teeth. Because diamagnetic behavior HTS zero field cooling, leakage significantly reduces proposed compared to existing with mounting magnets. Three-dimensional finite element (FE) modelling used validate design performan...

Many researchers have investigated axial flux permanent magnet motors (AFPMMs) with fractional-slot concentrated winding (FSCW) to achieve high power density. For an AFPMM FSCW, the path of magnetic is determined based on characteristics and position magnet. Therefore, saturated non-saturated parts cores are regularly present. The back yoke generally designed only in terms width because it can ...

In this paper, a new type of axial gap motor, named the “flux-modulating hybrid-field consequent pole motor (FHCM)”, is proposed. To enable flux modulation, FHCM comprises rotor iron pieces sandwiched between two stators, armature, and field poles. The poles comprise permanent magnet poles, ring windings. magnetic can be adjusted by varying current. electromagnetic performance FHCM, including a...