Results 61 to 70 of about 59,954 (356)
Methods of resistance estimation in permanent magnet synchronous motors for real-time thermal management [PDF]
Real-time thermal management of electrical ma- chines relies on sufficiently accurate indicators of internal tem- perature. One indicator of temperature in a permanent-magnet synchronous motor (PMSM) is the stator winding resistance.
Stewart, Paul +2 more
core +3 more sources
Objective The objectives of this study were to evaluate the correlation and agreement between ultrasonography and computed tomography (CT) in measuring ascending aorta diameter in patients with giant cell arteritis (GCA) and to investigate the development of new ascending aortic aneurysms in patients with newly diagnosed GCA.
Anne C. Bull Haaversen +4 more
wiley +1 more source
Design studies of inner and outer embedded Permanent Magnet for hybrid electric vehicles
Hybrid vehicles require high torque for propel, hence permanent Magnet machines are highly suiting for the improvement in the torque density. The paper focus on designing built-in interior permanent magnet (IPM) synchronous machine for hybrid electric ...
CV Aravind +3 more
doaj +1 more source
Direct-torque-control-driven permanent magnet synchronous machines eliminate the need for a position sensor while providing improved torque dynamics. However, the structure, regulation principle and nature of compensation of hysteresis-based controllers ...
Ibrahim M. Allafi, Shanelle N. Foster
doaj +1 more source
Comparison of Feedback Field-Weakening Techniques for Synchronous Machines with Permanent Magnets [PDF]
Anton Dianov
openalex +1 more source
Rotor eddy-current loss in permanent magnet brushless machines [PDF]
This paper presents an analysis of the rotor eddy-current loss in modular and conventional topologies of permanent magnet brushless machine. The loss is evaluated both analytically and by time-stepped finite-element analysis, and it is shown that it can ...
Atallah, K. +4 more
core +1 more source
Uncontrolled generation in interior permanent magnet machines [PDF]
The movement toward higher power automotive electrical systems has spurred research into low-cost alternators capable of operating over a wide constant-power speed range. A promising candidate for this application is a specially designed interior permanent-magnet (IPM) machine operating in uncontrolled generation (UCG).
Liaw, C. +3 more
openaire +2 more sources
Current Tracking Adaptive Control of Brushless DC Motors
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García +3 more
wiley +1 more source
Design and Performance Analysis of Axial Flux Permanent Magnet Machines with Double-Stator Dislocation Using a Combined Wye-Delta Connection [PDF]
Bing Peng, Xiaoyu Zhuang
openalex +1 more source
Fringing in tubular permanent-magnet machines: Part II. Cogging force and its minimization [PDF]
In Part I of the paper, analytical field solutions, which account for the fringing flux associated with the finite length of the ferromagnetic armature core in tubular permanent-magnet machines, are established.
Howe, D., Jewell, G.W., Wang, J.B.
core +1 more source

