Results 71 to 80 of about 11,229 (312)
Large direct drive generators: the induction machine as an alternative to permanent magnet machines
The Journal of Engineering, 2019 Design of direct drive power take off in renewable energy generators tends to focus on force density, naturally leading to the use of relatively expensive permanent magnet machines.
Nick J. Baker, Liam A. Naugher
doaj +1 more source
Numerical Investigations of Air Flow and Heat Transfer in Axial Flux Permanent Magnet Electrical Machines [PDF]
, 2010 In this study an investigation of heat transfer in air cooled Axial Flux Permanent Magnet (AFPM) electrical machines is carried out. Efficiency of electrical machines is strongly influenced by an effective cooling which is provided by forced convection:
AIROLDI, GIOVANNI
core
Five-phase version of 12slots/8poles three-phase Synchronous Machine for Marine-propulsion [PDF]
, 2014 Multiphase machines are widely used in electric marine propulsion especially because of their fault-tolerance which allows to guarantee the propulsion even if a fault occurs in the electrical system.
SCUILLER, Franck +5 more
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Advanced Engineering Materials, EarlyView.This experimental study investigates the thermodynamic limits of the Al–Mn τ ferromagnetic phase within complex‐composition alloys (CCAs). Using nine rare‐earth‐free compositions, it explores a broad region of the pseudobinary AlMnCoFeNi system. The results reveal intricate links between composition, phase stability, and magnetic behavior, highlighting
Sacha Plagnol‐Chauzu +4 more
wiley +1 more source
Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
Applied Sciences, 2021 There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density.
Iratxo Gómez +3 more
doaj +1 more source
Performance estimation of interior permanent-magnet brushless motors using the voltage-driven flux-MMF diagram [PDF]
, 2006 The flux-magnetomotive force (flux-MMF) diagram, or "energy conversion loop," is a powerful tool for computing the parameters of saturated interior permanent-magnet brushless motors, especially when the assumptions underlying classical dq theory are not ...
Cossar, C. +3 more
core +1 more source
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
Comparison of Two Cogging Torque Reducing Methods of 6-Poles Single Phase SMPM [PDF]
Journal of Intelligent Procedures in Electrical Technology, 2013 Surface permanent magnet structure of pm machines is widely used in these types of machines. In the slotted machines, low armature reaction and high overload capability features can be achieved by selecting surface permanent magnets.
Amir Hossein Tavakol Zadeh +2 more
doaj
Comparison of Stator-Permanent-Magnet Brushless Machines [PDF]
IEEE Transactions on Magnetics, 2008 This paper quantitatively compares two emerging stator-permanent-magnet (PM) machines, namely, the doubly salient PM and the PM hybrid brushless types. Both of them are attractive for electric vehicles and wind power generation. For comparison, both machines adopt the outer-rotor 36/24-pole topology and are designed based on the same peripheral ...
Niu, S, Jiang, JZ, Liu, C, Chau, KT
openaire +3 more sources
Axial field permanent magnet DC motor with powder iron armature
, 2007 The paper describes a double-gap axial field permanent magnet (PM) dc motor whose double-layer armature wave winding is constructed of copper strips.
Mohammad, Mohammad T. +1 more
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