IET Electric Power Applications, 2021 Permanent magnet synchronous motor (PMSM) shows the great potential for use in direct drive system because of its excellent low‐speed direct‐drive capability.
Yongda Song +4 more
doaj +1 more source
Fringing in tubular permanent-magnet machines: Part II. Cogging force and its minimization [PDF]
, 2003 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
Reduction of cogging torque of single phase brushless DC motor using flux barrier [PDF]
, 2011 This paper deals with the reduction of cogging torque in a single phase brushless DC motor. The constructional features and operating principles of the developed motor is presented.
Abdul Wahab, Noor Izzri +5 more
core +1 more source
Assessment of torque components in brushless permanent-magnet machines through numerical analysis of the electromagnetic field [PDF]
, 2005 For the calculation of torque in brushless (BL) alternating current motors a local method is proposed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air gap.
Dellinger, S.J. +4 more
core +1 more source
Energies, 2022 This paper suggests a method to improve the performances of the Dual Stator Axial Flux Spoke-type Permanent Magnet (DSAFSPM) machines with phase group concentrated coil (PGCC) windings, by incorporating continuous and discrete step-skewing along with a ...
Muhammad Ramiz Zakir +5 more
doaj +1 more source
Comparison of three analytical methods for the precise calculation of cogging torque and torque ripple in axial flux PM machines [PDF]
, 2016 A comparison between different analytical and finite-element (FE) tools for the computation of cogging torque and torque ripple in axial flux permanent-magnet synchronous machines is made.
Hannon, Bert +3 more
core +3 more sources
The use of cement leftovers from the hollow of spun piles as an additive in self-compacting concrete [PDF]
, 2018 Spun piles have been used widely by developing countries, including Malaysia, to construct the foundation of most construction projects. A spun pile is a reinforced precast and prestressed concrete that is compacted in a mould through spinning compaction.
Adnan, Suraya Hani +4 more
core +1 more source
The implications of the use of composite materials in electromagnetic device topology and shape optimization [PDF]
, 2008 The use of soft magnetic composites (SMCs) provides electromagnetic device designers with serious challenges. While such materials have the potential of allowing novel 3-D topologies to be used, as well as providing major advantages in recycling at the ...
Kim, D.H., Lowther, D.A., Sykulski, J.K.
core +1 more source
Analysis and Optimization of Axial Flux Permanent Magnet Machine for Cogging Torque Reduction
Mathematics, 2021 In this paper, a hexagonal magnet shape is proposed to have an arc profile capable of reducing torque ripples resulting from cogging torque in a single-sided axial flux permanent magnet (AFPM) machine.
Hina Usman +5 more
doaj +1 more source
Reduction of Cogging Torque and EMF Harmonics in Modulated Pole Machines [PDF]
IEEE Transactions on Energy Conversion, 2014 This paper discusses a method for reducing cogging torque and harmonic content of back-electromotive force (EMF) waveforms in modulated pole machines (MPMs). Tooth pitching is applied to a separate phase MPM in order to reduce the most prominent harmonics present in a three-phase MPM's cogging torque.
Washington JG, Atkinson GJ, Baker NJ
openaire +2 more sources