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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Improved rotor position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]
, 2007 The paper presents an improved signal injection- based sensorless control method for permanent magnet brushless AC (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes.
Bingham, Chris +4 more
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Rotor resonances of high-speed permanent-magnet brushless machines [PDF]
, 2002 For high-speed machines, in particular, it is very important to accurately predict natural frequencies of the rotor at the design stage so as to minimize the likelihood of failure.
Ede, J.D., Howe, D., Zhu, Z.Q.
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Cost-Effective Scheme for a Brushless Wound Rotor Synchronous Machine
World Electric Vehicle Journal, 2021 This paper proposes a new scheme for a brushless wound rotor synchronous machine (WRSM) by generating an additional, two-pole component of magneto-motive force (MMF) with a series-connected additional three-phase winding with the armature three-phase ...
Ghulam Jawad Sirewal +1 more
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Energies, 2020 In an open-winding machine, three-phase stator currents can be controlled such that the input armature currents may contain the third-harmonic current component in addition to the fundamental.
Syed Sabir Hussain Bukhari +3 more
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Direct torque control of brushless DC drives with reduced torque ripple [PDF]
, 2005 The application of direct torque control (DTC) to brushless ac drives has been investigated extensively. This paper describes its application to brushless dc drives, and highlights the essential differences in its implementation, as regards torque ...
Howe, D., Liu, Y., Zhu, Z.Q.
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Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]
, 2003 Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
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High-Harmonic Injection-Based Brushless Wound Field Synchronous Machine Topology
Mathematics, 2021 This paper discusses the design and analysis of a high-harmonic injection-based field excitation scheme for the brushless operation of wound field synchronous machines (WFSMs) in order to achieve a higher efficiency.
Syed Sabir Hussain Bukhari +4 more
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Iron loss in permanent-magnet brushless AC machines under maximum torque per ampere and flux weakening control [PDF]
, 2002 The airgap flux density distribution, flux density loci in the stator core, and the associated iron loss in two topologies of brushless AC motor, having a surface-mounted magnet rotor and an interior-mounted magnet rotor, respectively, are investigated ...
Chen, Y.S., Howe, D., Zhu, Z.Q.
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Optimal design of a multi-phase double-stator bearingless brushless direct current motor
Advances in Mechanical Engineering, 2017 To overcome the serious coupling between torque and levitation forces, increase the output torque, and improve fault tolerance performance for the bearingless brushless direct current motor, a multi-phase double-stator bearingless brushless direct ...
Yuemei Qin, Huangqiu Zhu
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