Design Of Permanent Magnet Motor Research Articles

Axial Flux Permanent Magnet Motor Design for Lightweight Unmanned Aerial Vehicles

Axial Flux Permanent Magnet Motor Design for Lightweight Unmanned Aerial Vehicles

Flux-Oriented Design and Analysis of a Hybrid Rotor Pole Interior Permanent Magnet Motor for In-Wheel Direct Drive

Flux-Oriented Design and Analysis of a Hybrid Rotor Pole Interior Permanent Magnet Motor for In-Wheel Direct Drive

Design and Analysis of a High-Speed Wet-Type Fault-Tolerant Permanent Magnet Motor Considering Oil Frictional Loss for Aerospace Electrohydrostatic Actuator Application

Design and Analysis of a High-Speed Wet-Type Fault-Tolerant Permanent Magnet Motor Considering Oil Frictional Loss for Aerospace Electrohydrostatic Actuator Application

Multi-pole ratio single-winding pole-changing permanent magnet motor design and analysis

Multi-pole ratio single-winding pole-changing permanent magnet motor design and analysis

Design and Optimization of External Rotor Consequent Pole Permanent Magnet Motor with Low Iron Loss and Low Torque Ripple

To reduce the iron loss and torque ripple of an external rotor consequent pole (ERCP) motor used in an electric vehicle air-conditioning compressor, the magnetic pole structure of the motor was improved, and an unequal piecewise consequent pole (CP) structure was designed. The performance of the motor is optimized by reducing the harmonic content in the air gap flux density and reducing the iron saturation degree of the motor. The designed CP structure can significantly reduce the iron loss and torque ripple of the motor. Based on the Taguchi method, the optimal size parameters of the unequal piecewise CP structure are determined, and the final optimization design scheme is obtained. The results of finite element simulation and high-precision iron loss model show the following: compared with the original motor, the iron loss and torque ripple of the motor with the final optimized design scheme are significantly reduced.

An Investigation into the Pole–Slot Ratio and Optimization of a Low-Speed and High-Torque Permanent Magnet Motor

At present, low-speed high-torque permanent magnet motors are widely used in the sampling industry, manufacturing industry and energy industry. However, the research on low-speed high-torque permanent magnet motors is far from enough. The primary difficulty in the initial design of low-speed high-torque permanent magnet motors is the selection of pole–slot ratio. The pole–slot ratio has a great influence on the electromagnetic performance such as torque ripple and the maximum output torque of low-speed motors. Choosing the appropriate pole–slot ratio scheme can make the design of a low-speed motor more efficient. In addition, the optimization design of the motor is also a necessary process. At present, there are many studies on optimization algorithms. However, the research on sample point sampling and surrogate model fitting is not enough. Choosing the appropriate sample point sampling method and surrogate model fitting method can help one obtain a more accurate surrogate model, which lays a foundation for the optimization of the motor. Based on the above analysis, this paper first selects four representative pole–slot ratio schemes for comprehensive comparison of their electromagnetic performances. Secondly, two sample point sampling methods and three surrogate model fitting methods are combined to obtain six surrogate models, and the accuracy of the six surrogate models is compared and analyzed. Finally, a 37kW,160rpm prototype is made, and the comparison of the surrogate model optimization prediction results, the finite element simulation calculation results and the measured results is carried out to further prove the accuracy of the selected surrogate model. The work performed in this paper provides a certain reference value for the initial design and optimization experiment design of low-speed high-torque permanent magnet motor.

Optimal design and analysis of a dual-3phase permanent magnet motor with fault tolerant capability

Optimal design and analysis of a dual-3phase permanent magnet motor with fault tolerant capability

Design and Analysis of the High Torque Density Circumferentially Excited Permanent Magnet Motor Based on PSO

Design and Analysis of the High Torque Density Circumferentially Excited Permanent Magnet Motor Based on PSO

Optimal Design of a Novel Consequent-Pole Interior Permanent Magnet Motor with Flared-Structured Rotor

Interior permanent magnet motors are widely used in applications requiring high power density and high efficiency due to their high torque-generating capabilities. Recently, given the price fluctuations and unstable supply of rare earth permanent magnets, alternative configurations with reduced use of permanent magnets are being sought. Among the various candidates related to this, the consequent-pole type rotor structure can halve the number of permanent magnets used compared with conventional structures. However, in a no-load analysis, the waveform of the back electromotive force becomes asymmetric, generating a harmonic component. As a result, there is a disadvantage that the torque ripple increases. To overcome these shortcomings, we propose a novel rotor structure that applies a consequent-pole structure to an embedded permanent-magnet motor structure, wherein a number of permanent magnets are arranged in a flared structure to constitute a single polarity. In the proposed flared-structured magnet arrangement, it is possible to adjust the angle of the permanent magnet and the polar angle to mitigate the asymmetry of the back-EMF waveform. The proposed structure was optimized with a genetic algorithm and a prototype of the optimal model was constructed and experimentally evaluated to verify its validity. Finally, the performance improvement and validity of the proposed structure were verified by comparing the analysis results of the optimal model with the experimental results.

Winding-MMF-based design and investigation of dual-winding hybrid-tooth vernier permanent magnet motor with reduced torque ripple and improved power factor

In this paper, in order to further reduce torque ripple and improve power factor, a new vernier permanent magnet motor is proposed, in which the design concept of dual-winding hybrid-tooth configuration is incorporated. In order to clarify motor torque ripple and power factor, the winding-magnetomotive-force-based design and analysis method is proposed, in which harmonic characteristics are considered as key factors during the magnetic field modulation process. The relationship between harmonics generated by winding MMF, torque ripple, and power factor are investigated. In addition, the split-tooth vernier permanent magnet motor is also investigated as a referenced motor. Detailed comparisons between the DWHT-VPM motor and ST-VPM motor are carried out, including air gap magnetic field, torque, and power factor. Both theoretical and simulation results verify the reasonability of the proposed DWHT-VPM motor, and the effectiveness of the proposed winding-MMF-based analysis method, which provide a new potential research path for the design and analysis of flux modulation motors.

Synthesis of Relative Permeance for Analysis and Design of Multislotted Surface-Mounted Permanent Magnet Motor

Synthesis of Relative Permeance for Analysis and Design of Multislotted Surface-Mounted Permanent Magnet Motor

Performance Comparison and Optimization of a PMSM Based on Hybrid-Type Permanent Magnet with Two Kinds of Rotor Topology

This study focuses on designing and optimizing Permanent Magnet Synchronous Motors (PMSMs) using hybrid rare earth and ferrite materials. Two distinctive rotor topologies of the Hybrid-Type Permanent Magnet Motor (HTPMM) are proposed: series and parallel magnetic circuits. Initially, the rotor topology and magnetic circuit principles of both the prototype and the designed HTPMM are introduced. Subsequently, a multi-objective genetic algorithm is employed to optimize the two HTPMMs, determining the final optimized parameters. Thise study further analyzes the cost advantage of HTPMMs from the perspective of permanent magnet materials, and detailed finite element analysis is conducted to evaluate the electromagnetic performance, including the air-gap flux density, no-load back electromotive force, cogging torque, load torque characteristics, and demagnetization properties. A comparative analysis of the prototype and two designed motors reveals that the HTPMM exhibits similar performance to the prototype, effectively reducing the usage of rare earth materials and significantly lowering the manufacturing costs. This research validates the feasibility of reducing rare earth material usage while maintaining a similar performance and provides a new perspective for the design of permanent magnet motors.

Multiple Operation Design and Optimization of a Five-Phase Interior Permanent Magnet Motor Considering Compound Fault Tolerance From Perspective of Flux-Intensifying Effect

Multiple Operation Design and Optimization of a Five-Phase Interior Permanent Magnet Motor Considering Compound Fault Tolerance From Perspective of Flux-Intensifying Effect

Design and Optimization of the Dual-Stator Axial-Field Flux-Switching Permanent Magnet Motor with High-Torque Density and Low-cost

Design and Optimization of the Dual-Stator Axial-Field Flux-Switching Permanent Magnet Motor with High-Torque Density and Low-cost

Optimal Design of Surface-Mounted Permanent Magnet Motor with Multi-Level Magnet Combination Using Analytical Method

Optimal Design of Surface-Mounted Permanent Magnet Motor with Multi-Level Magnet Combination Using Analytical Method

Design, Optimization, and Development of an Axial Flux Interior Permanent Magnet Motor with a Novel Flux Barrier

Design, Optimization, and Development of an Axial Flux Interior Permanent Magnet Motor with a Novel Flux Barrier

Design and Optimization of High-Speed Permanent Magnet Motor Based on Artificial Neural Network

Design and Optimization of High-Speed Permanent Magnet Motor Based on Artificial Neural Network

Design and optimisation of high-speed permanent magnet motor based on artificial neural network

Design and optimisation of high-speed permanent magnet motor based on artificial neural network

Design of Axial-Flux Permanent Magnet Motors With High Torque Density and Low Thermal Raise for Electric Motorcycle

Design of Axial-Flux Permanent Magnet Motors With High Torque Density and Low Thermal Raise for Electric Motorcycle

Multiple Operating Mode Based Magnetic-Pole Partitioned Design and Optimization for a Dual Stator Axial Flux Permanent Magnet Motor

Multiple Operating Mode Based Magnetic-Pole Partitioned Design and Optimization for a Dual Stator Axial Flux Permanent Magnet Motor