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The paper deals with the analysis of a new type of single phase claw pole permanent motor with single side axial flux configuration. The compact structure and the adoption of advanced materials are favorable for the use in high speed ventilation and pumping systems, where efficiency represents a key issue. A preliminary analysis is carried out by means of 3D FE magnetostatic simulations to check the...
This paper deals with electromagnetic analysis of double-sided axial flux permanent magnet (AFPM) motor with ring-wound type slotless (RWS) stator. On the basis of magnetic vector potential and polar-coordinate system, the magnetic field solutions due to PM rotor are obtained. In particular, 3-D problem, that is, the reduction of magnetic fields near outer and inner radius of the PM is solved by introducing...
With increasing the interest in environment-friendly vehicles such as electric vehicle, hybrid electric vehicle and fuel cell electric vehicles, variable speed driving systems are continuously researched and developed. The demand for the main driving motor of high efficiency, high power and high speed is highly increasing. Recently, as a motor satisfying this demand, the interior permanent magnet...
With the ever advancement and increased force density of slotted brushless linear permanent magnet (PM) actuators the attraction forces become more dominating. In the early years this attraction force was advantageous, although that it now becomes a problem due to the reduced bearing lifetime. This lifetime is influenced by the lubrication, rolling contact fatigue, time of operation, metal selection...
Driving motor system using resolver input and sinusoidal wave driving, which is used to drive the small electric vehicle, is developed. Driving motor system is consisted with permanent magnet type motor and resolver input and sinusoidal wave driving type motor driver. In this work, driving motor is designed using the electromagnetic analysis with finite element method, and motor driver is designed...
This paper presents the design and electromagnetic characteristics analysis of a permanent magnet linear synchronous motor (PMLSM). The PMLSM is composed of a primary stator and a secondary mover, which are made up of three-phase copper windings and permanent magnets, respectively. The technical and economic targets of linear motor are directly related to the electromagnetic characteristics. However,...
This paper deals with design criteria and characteristics analysis included electromagnetic losses analysis of a high-speed permanent magnet synchronous motor for a 7.5-kW, 60-krpm class centrifugal air compressor. In order to design this machine, we introduced analytical techniques, such as the electromagnetic transfer relations theorem and equivalent magnetic circuit method. And, from the curve-fitting...
This paper presents the design and analysis of a permanent magnet (PM) transverse flux motor with soft magnetic composite (SMC) core by applying multi-level multi-domain modeling. The design is conducted in two levels. The upper level is composed of a group of equations which describe the electrical and mechanical characteristics of the motor. The lower level consists of two domains: electromagnetic...
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