A review of modeling and diagnostic techniques for eccentricity fault in electric machines

Z Liu, P Zhang, S He, J Huang - Energies, 2021 - mdpi.com
Research on the modeling and fault diagnosis of rotor eccentricities has been conducted
during the past two decades. A variety of diagnostic theories and methods have been …

Analysis and detection of rotor eccentricity in permanent magnet synchronous machines based on linear Hall sensors

Y Wang, K Liu, W Hua, C Zhang, Z Wu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Rotor eccentricity commonly exists in permanent magnet synchronous machines (PMSMs)
due to improper assembly, excessive vibration, and continuous operation. Consequently …

Magnetic field prediction of the saturated surface-mounted permanent magnet synchronous machine with rotor eccentricity

J Ren, X Wang, W Zhao - IEEE Transactions on Industrial …, 2021 - ieeexplore.ieee.org
This article presents an analytical method to predict the magnetic field of eccentric surface-
mounted permanent magnet synchronous machine (SPMSM) by applying the hybrid …

Investigation on magnetic force of a flux-modulated double-rotor permanent magnet synchronous machine for hybrid electric vehicle

Z Song, C Liu, H Zhao - IEEE Transactions on Transportation …, 2019 - ieeexplore.ieee.org
Flux-modulated double-rotor (FMDR) machine topology has recently attracted much
attention, particularly for the hybrid electric vehicle (HEV) propulsion. To maintain the driving …

Unbalanced magnetic pull compensation with active magnetic bearings in a 2 MW high-speed induction machine by FEM

C Di, I Petrov, JJ Pyrhönen… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
High-power high-speed induction machines (IMs) are gaining ground in various industrial
applications, especially in replacing traditional motors and gearboxes driving compressors …

Mitigation of unbalanced magnetic force in a PM machine with asymmetric winding by inserting auxiliary slots

J Ma, ZQ Zhu - IEEE Transactions on Industry Applications, 2018 - ieeexplore.ieee.org
Permanent magnet (PM) machine has received much attention recently. However,
unbalanced magnetic force (UMF) may occur in PM machines with some slot/pole number …

Rotor UMP characteristics and vibration properties in synchronous generator due to 3D static air‐gap eccentricity faults

YL He, YX Sun, MX Xu, XL Wang… - IET Electric Power …, 2020 - Wiley Online Library
In this article, the qualitative theoretical derivation, together with finite element analysis and
experimental studies are presented to investigate the unbalanced magnetic pull (UMP) as …

Fault-tolerant modular stator concentrated winding permanent magnet machine

I Petrov, C Di, P Lindh, M Niemelä, AK Repo… - IEEE …, 2020 - ieeexplore.ieee.org
This paper studies a modular permanent magnet synchronous machine (MPMSM)
converted from a traditional single-core 24-slot 20-pole tooth-coil winding permanent …

Electromagnetic force density calculation in surface‐mounted PM synchronous machine with rotor eccentricity by an equivalent transformation method

J Ren, X Wang, W Zhao, B Peng - IET Electric Power …, 2020 - Wiley Online Library
An equivalent transformation method is proposed to calculate the electromagnetic force
density of surface‐mounted permanent magnet (PM) synchronous machine with static and …

Influence of static eccentricity on unbalanced magnetic force of external rotor permanent magnet brushless direct current motor used as In‐wheel motor

C Ma, H Cui, P Zheng, Y Zhang… - IET Electric Power …, 2019 - Wiley Online Library
Here, analytical expressions of the unbalanced magnetic force (UMF) of the stator and the
rotor under static eccentricity (SE) are deduced by using complex relative magnetic …