Results 31 to 40 of about 2,700,677 (338)

Carbon Nanotubes as an Alternative to Copper Wires in Electrical Machines: A Review

open access: yesEnergies, 2023
The surge in electric vehicles (EVs) and their electrical appliances requires highly efficient, lightweight electrical machines with better performance.
Vigneselvan Sivasubramaniyam   +4 more
doaj   +1 more source

A General Mathematical Formulation for the Determination of Differential Leakage Factors in Electrical Machines with Symmetrical and Asymmetrical Full or Dead-Coil Multiphase Windings [PDF]

open access: yes, 2018
This paper presents a simple and general mathematical formulation for the determination of the differential leakage factor for both symmetrical and asymmetrical full and dead-coil windings of electrical machines.
Caruso M.   +4 more
core   +1 more source

Phase voltage distortion of IPM and SPM machines with distributed windings in field weakening region

open access: yesThe Journal of Engineering, 2019
This study investigates the field-weakening capability of interior permanent magnet (IPM) and surface-mounted permanent magnet (SPM) machines with distributed windings by considering phase voltage distortion in field-weakening region.
Nan Zhao   +3 more
doaj   +1 more source

A Versatile Analytical Method of Investigating MMF Harmonics of Armature Windings

open access: yesIEEE Access, 2023
Analytical methods are of great interest for the design and analysis of AC machines. This paper proposes a new analytical method to study the harmonic rotating components of the magneto motive force (MMF) produced by various types of armature windings ...
Ze-Zheng Wu, Jian-Xin Shen
doaj   +1 more source

Improved transient simulation of salient-pole synchronous generators with internal and ground faults in the stator winding [PDF]

open access: yes, 2005
An improved model for simulating the transient behavior of salient-pole synchronous generators with internal and ground faults in the stator winding is established using the multi-loop circuit method.
Bi, D.Q.   +4 more
core   +1 more source

Permanent-magnet brushless machines with unequal tooth widths and similar slot and pole numbers [PDF]

open access: yes, 2005
This paper presents a comparative study of three-phase permanent-magnet brushless machines in which the slot and pole numbers are similar, with reference to conventional brushless dc machines in which the ratio of the slot number to pole number is ...
Howe, D., Ishak, D., Zhu, Z.Q.
core   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

open access: yes, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas   +121 more
core   +1 more source

Reduction in Eddy Current Loss of Special Rectangular Windings in High-Torque IPMSM Used for Wind Generator

open access: yesIEEE Access, 2023
A special rectangular winding structure, which has different cross-sectional shape but the same cross-sectional area for each turn, has been adopted in a high-torque IPMSM used for a wind generator to improve slot factor and heat dissipation.
Xianji Tao   +3 more
doaj   +1 more source

Reduction of cogging torque in interior-magnet brushless machines [PDF]

open access: yes, 2003
An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described.
Howe, D.   +3 more
core   +1 more source

Identification for Remanufacturing of a Synchronous Reluctance Machine Considering the Circular Economy Conditions

open access: yesChemical Engineering Transactions, 2023
Due to the growing pressure from governmental entities and customers in the European Union, Original Equipment Manufacturers are being pushed to design and manufacture sustainable and environmentally friendly products.
Mihály Katona   +2 more
doaj  

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