Analytical and numerical computation of air-gap magnetic fields in brushless motors with surface permanent magnets [PDF]
, 2000 This paper extends the theory of the air-gap magnetic field in permanent-magnet (PM) brushless motors. Scalar and vector potential solutions to the field equations are brought together to unify many of the important practical methods already in use.
Davies, J.H. +4 more
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Brushless dc motor with large air gap
Electrical Engineering in Japan, 1997 The authors propose a new brushless dc motor for pumps, with a large air gap of 8 mm, compared with the conventional gap of 1 mm. The conventional pump system is composed of an induction motor, a magnetic coupling, and a magnetic rotor with vane. This rotor receives power from the magnetic coupling.
Yoshinobu Nakamura +2 more
openaire +2 more sources
Energy Reports, 2023 The first-order inertia of the armature winding of the brushless DC motor will cause current offset, which will reduce the electromagnetic torque. In the sensorless drive of brushless DC motors, correction of commutation point is an effective solution to
Kun Liu +4 more
doaj +1 more source
PM fractional machines adopting bonded magnets: effect of different magnetizations on the energetic performance [PDF]
, 2012 The adoption of Permanent Magnets in small brushless machines for automotive applications is becoming frequent. Some research on bonded magnets is being carried on to substitute the ferrites.
Ferraris, Luca +3 more
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Review of Traction Motors for Electric Vehicle Application [PDF]
EPJ Web of ConferencesThe accelerating demand for electric vehicles (EVs) and the necessity to reduce fossil fuel dependence have intensified research on advanced traction motor technologies.
Shahakar D.A., Shahakar Y. D.
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Influence of design parameters on cogging torque in permanent magnet machines [PDF]
, 2000 The influence of various design parameters on the cogging torque developed by permanent magnet machines is investigated. It is shown that the slot and pole number combination has a significant effect on the cogging torque, and influences the optimal ...
Howe, D., Zhu, Z.Q.
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ОПТИМІЗАЦІЯ ЕНЕРГОДИНАМІЧНИХ ПРОЦЕСІВ В СИСТЕМАХ ЕЛЕКТРОПРИВОДУ КВАДРОКОПТЕРА
Праці Інституту електродинаміки Національної академії наук України, 2020 In order to save energy consumption of the battery for powering the quadrocopter flight stabilization system, it is pro-posed to optimize the process of current consumption by rotor electric drives, which are based on brushless DC motors.
Ю.О. Денисов +3 more
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Improved analytical model for predicting the magnetic field distribution in brushless permanent-magnet machines [PDF]
, 2002 A general analytical technique predicts the magnetic field distribution in brushless permanent magnet machines equipped with surface-mounted magnets. It accounts for the effects of both the magnets and the stator windings.
Chan, C.C., Howe, D., Zhu, Z.Q.
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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
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Analytical modeling of open-Circuit air-Gap field distributions in multisegment and multilayer interior permanent-magnet machines [PDF]
, 2009 We present a simple lumped magnetic circuit model for interior permanent-magnet (IPM) machines with multisegment and multilayer permanent magnets. We derived analytically the open-circuit air-gap field distribution, average air-gap flux density, and ...
Chan, C.C. +3 more
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