Torque generation mechanism of dual-permanent-magnet-excited vernier machine by air-gap field modulation theory

W Zhao, Q Hu, J Ji, Z Ling, Z Li - IEEE Transactions on Industrial …, 2022 - ieeexplore.ieee.org
The dual-permanent-magnet-excited Vernier (DPMEV) machine has attracted increasing
interest for its high torque density. However, it is difficult to analyze due to the complex …

Quantitative comparison of modular linear permanent magnet vernier machines with and without partitioned primary

Y Xu, J Ji, Z Ling, C Wang… - Chinese Journal of …, 2023 - ieeexplore.ieee.org
A comparison of two modular linear permanent-magnet vernier (LPMV) machines is
presented. A modular LPMV machine with a partitioned primary, which can significantly …

Armature MMF reconfiguration method of six-phase integral-slot PMSMs for zero-order vibration reduction under open-circuit faults

J Ji, Y Zhou, T Tao, Z Li, W Zhao - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
It is well known that the vibration performance of the permanent magnet synchronous
machines (PMSMs) will deteriorate under the open-circuit fault operation. However, the …

Investigation of Eccentric PM on High-frequency Vibration in FSCW PM Machine Considering Force Modulation Effect

J Ji, W Jiang, W Zhao, T Liu - Chinese Journal of Electrical …, 2024 - ieeexplore.ieee.org
This study investigates the negative influence of an eccentric permanent-magnet (PM)
design on high-frequency electromagnetic vibration in fractional-slot concentrated-winding …

Stator Core Loss Suppression of a Rotor Flux-Switching Permanent Magnet Machine by Reconfiguring Rotor Permeance

J Liao, Q Chen, G Xu, G Liu, Z Liu… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This paper presents a stator core loss suppression method for a rotor flux-switched
permanent magnet (RFSPM) machine by reconfiguring rotor permeance. By analyzing the …

A Novel Discrete EMN for Electromagnetic Force and Vibration Computation of SPM Machine Considering Carrier Harmonics

W Zhao, T Liu, J Ji, S Zhu, D Cao - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article proposes a discrete equivalent magnetic network (EMN) for electromagnetic
force and vibration computation of surface-mounted permanent magnet (SPM) machines …

Vibration reduction and torque improvement of integral-slot SPM machines using PM harmonic injection

J Ji, D Liu, Y Zeng, T Liu, W Zhao - Chinese Journal of …, 2023 - ieeexplore.ieee.org
This study aimed to improve the vibration and torque of an integral-slot surface-mounted
permanent magnet (SPM) machine by optimizing the shape of the harmonically injected …

Enhanced Fault Tolerance of Dual Three-Phase Permanent Magnet Motor With Three-Redundancy Control

L Huang, W Zhao, J Ji, T Tao, Y Du… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article proposes a novel three-redundancy control for the dual three-phase permanent
magnet (DTP-PM) motor to enhance the open-phase fault tolerance. Three redundancies …

Conditional-extreme-point based fault-tolerant predictive control of five-phase PMSM with low switching frequency

H Wang, W Zhao, T Tao, M Kang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The virtual voltage vector based fault-tolerant control has been widely concerned, but
suffering from the increased switching frequency and the reduced bus voltage utilization at …

Investigation of Vibration Behaviors of Dual Permanent Magnet Vernier Machine Considering Field and Force Modulation Effects

S Zhu, W Zhao, Y Shen, X Zhu, Y Zhou… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This article systematically investigates the field and force modulation effects on magnetic
field, radial force, and electromagnetic vibration behaviors of a dual permanent magnet …