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Methods for Reducing Cogging Force in Permanent Magnet Machines: A Review
Energies, 2022 Permanent magnet (PM) machines inevitably suffer from cogging force, which does not contribute to the average output torque (force) but contributes as a type of torque (force) ripple. This paper provides an overview of the cogging force reduction methods
Wenjuan Hao +4 more
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Analysis Method Development of Hybrid Linear Motor Considering Cogging Force Effect
Actuators, 2023 This study examines the distributions of the cogging and current forces in a hybrid linear motor and their impact on its performance. Subsequently, using the Maxwell stress tensor to analyze the force acting on the motor, a method has been proposed for ...
Zhixiong Jiang +3 more
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Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer
CES Transactions on Electrical Machines and Systems, 2023 For a new type of toroidal permanent magnet linear motor(TPMLSM), this paper analyzes the thrust fluctuation in the constant acceleration operation of the motor from the Angle of the cogging force of the linear motor.
Rongtao Zeng +3 more
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Cogging force reduction in linear tubular flux switching permanent-magnet machines
Open Physics, 2018 The aim of this paper is to explore the possibility of using linear tubular flux switching permanent magnet machines in a free piston energy conversion (FPEC) system.
Lo Doudou Sarr +3 more
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Energies, 2018 Linear flux switching permanent magnetic (LFSPM) machines, with the armature windings and magnets both on the mover in addition to a robust stator, are a good choice for long stoke applications, however, a large cogging force is also inevitable due to ...
Wenjuan Hao, Yu Wang
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Energies, 2016 Permanent magnet linear motors (PMLMs) with double-layer concentrated windings generally show significant cogging forces due to the introduction of auxiliary teeth for eliminating the end-effect induced phase unbalance, even when the fractional-slot ...
Qian Wang, Bo Zhao, Jibin Zou, Yong Li
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Energies, 2023 A Permanent Magnet Linear Alternator (PMLA) works seamlessly with a Free Piston Stirling Engine (FPSE) to convert short-stroke and high-frequency linear motion to electric power.
Chin-Hsiang Cheng, Surender Dhanasekaran
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Structural effects of asymmetric magnet shape on performance of surface permanent magnet synchronous motors [PDF]
Scientific ReportsThis study proposes a novel surface permanent magnet synchronous motor (N-SPMSM) structure, which features asymmetric magnets attached to the rotor surface.
Jungwoo Choe +4 more
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Research on cogging torque optimization design of permanent magnet synchronous wind turbine [PDF]
E3S Web of Conferences, 2021 Cogging torque is one of the unique problems of permanent magnet generators. Its main cause is the uneven distribution of the generator’s magnetic permeability, which directly affects the starting and running performance of the generator.
Chen Lei +5 more
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IET Electric Power Applications, 2023 Given the existence of detent force, the positioning accuracy of permanent magnet linear synchronous motor (PMLSM) with an iron core worsens in its application in the field of the precision drive.
Zhiyong Lan +5 more
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