Study on Vibration Characteristics of Metro Bogie with Permanent Magnet Synchronous Direct Drive Motor

2021 ◽  
pp. 261-271
Author(s):  
Liqiang Yang ◽  
Xiaoping Jia ◽  
Li Huang
Keyword(s):  
Permanent Magnet ◽  
Vibration Characteristics ◽  
Direct Drive ◽  
Drive Motor

Direct-Drive Permanent Magnet Synchronous Motor in the Application of New Energy Vehicles

2014 ◽  
Vol 953-954 ◽  
pp. 1321-1324 ◽  
Author(s):  
Yuan Fei ◽  
Quan Liu
Keyword(s):  
Permanent Magnet ◽  
Future Development ◽  
Electric Potential ◽  
Permanent Magnet Synchronous Motor ◽  
Development Trend ◽  
Direct Drive ◽  
Analysis Software ◽  
Drive Motor ◽  
New Energy ◽  
New Energy Vehicles

This paper introduces the new energy vehicles drive system for the future development trend, analysis and comparison in the new energy vehicles drive motor technical indicators. By Ansolf analysis software to optimize the motor rotor, to improve the air gap flux density and the electric potential sine.

DSP-based high-precision torque control of permanent magnet DD (direct drive) motor

1990 ◽  
Vol 110 (4) ◽  
pp. 51-58 ◽  
Author(s):  
Shingo Kamiya ◽  
Masakane Shigyo ◽  
Tatsuo Makino ◽  
Nobuyuki Matsui
Keyword(s):  
Permanent Magnet ◽  
High Precision ◽  
Torque Control ◽  
Direct Drive ◽  
Drive Motor

scholarly journals A Novel Direct-Drive Permanent Magnet Synchronous Motor with Toroidal Windings

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 432 ◽  
Author(s):  
Caixia Gao ◽  
Mengzhen Gao ◽  
Jikai Si ◽  
Yihua Hu ◽  
Chun Gan
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Finite Element Models ◽  
The Novel ◽  
Direct Drive ◽  
Low Speed ◽  
Field Versus ◽  
Drive Motor ◽  
High Torque

A direct-drive motor has the merits of low speed, high torque, and elimination of mechanical deceleration mechanisms, and is widely used in various fields. A novel direct-drive permanent magnet synchronous motor is presented herein, in which all coils are wrapped around the stator yoke in the same orientation. The structure of the novel direct-drive permanent magnet synchronous motor with toroidal windings (N-TWDDPMSM) is introduced and its operating principle is analyzed by describing the variation in the armature magnet field versus time. Furthermore, based on the same power grade and mechanical size, several finite-element models of motors with different windings are established using Magnet software to analyze the distribution of magnetic field, back-electromotive force (back-EMF), power-angle characteristics, loss characteristics, etc. Compared with the traditional permanent magnet synchronous motor (T-PMSM), the traditional permanent magnet synchronous motor with toroidal windings (T-TWPMSM), and the N-TWDDPMSM, the N-TWDDPMSM shows advantages of low speed and high torque, and the feasibility and superiority of the N-TWDDPMSM are verified.

Design and analysis of an axial flux permanent magnet motor for the direct drive radial piston pump

2019 ◽  
Vol 233 (19-20) ◽  
pp. 7077-7088
Author(s):  
Jingxiang Li ◽  
Xingwang Meng ◽  
Peng Dong ◽  
Shengdun Zhao
Keyword(s):  
Finite Element ◽  
Permanent Magnet ◽  
Three Dimensional ◽  
Piston Pump ◽  
Direct Drive ◽  
Axial Flux ◽  
Drive Motor ◽  
Dimensional Finite Element ◽  
New Type ◽  
Three Dimensional Finite Element

Direct drive motor-pumps have attracted a lot of attention from researchers because of high efficiency and compact structure. This paper presents a new type of direct drive motor-pump, which integrates the structure of the radial piston pump and axial-flux permanent-magnet machine. The rotor of the disc motor is fixedly connected to the pump rotor, and the new pump uses a new type of distribution shaft for oil distribution. This structure reduces the intermediate transmission mechanism, and the application of the disc motor further reduces the axial size, the overall volume, and heat dissipation. The efficiency of the entire system has been improved. The three-dimensional finite element method is used to dynamically analyze flow field in the flow channel, which is extracted and simplified. The flow and pressure of the pump meet the design requirements in the simulation. A disc motor was designed for the pump, and the theoretical formula of the disc motor was derived. The initial size of the motor was obtained. The response surface method and three-dimensional finite element are used to optimize the corresponding axial-flux permanent-magnet machine. Loading the torque condition of the pump to the load end of the motor, the response of the motor meets the requirements.

Analysis of Electromagnetic Field and Temperature Field of Low Speed High Torque Permanent Magnet Motor under Locked-Rotor Operation

2011 ◽  
Vol 383-390 ◽  
pp. 2963-2967 ◽  
Author(s):  
Lin Suo Zeng ◽  
Li Zhu Sun
Keyword(s):  
Electromagnetic Field ◽  
Temperature Field ◽  
Permanent Magnet ◽  
Working Conditions ◽  
Direct Drive ◽  
Permanent Magnet Motor ◽  
Temperature Field Distribution ◽  
Low Speed ◽  
Drive Motor ◽  
High Torque

Low speed high torque direct drive motor has been widely applied in various industries. However, operation faults occur frequently due to the complex working conditions of the motor, especially the locked-rotor fault. Therefore, it is necessary to do deeply research in this case of the electromagnetic field and the temperature field distribution of the motor. Taking a 5kW, 10-pole tangential type Low speed high torque permanent magnet (PM) motor for example, based on field-circuit coupled finite element method, 2-D motor field, circuit and motion coupling is achieved. On this basis, the temperature field of the motor is analyzed. Finally the results which are consistent with the actual project are obtained.

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