Design and Analysis of a Novel Radial Mud Pump Directly Driven by Permanent Magnet Disc Synchronous Motor

2011 ◽  
Author(s):  
J. T. Liang ◽  
S. D. Zhao ◽  
Y. H. Hu
Keyword(s):  
Finite Element Analysis ◽  
Permanent Magnet ◽  
Synchronous Motor ◽  
The Novel ◽  
Performance Parameters ◽  
Direct Drive ◽  
Flow Pulsation ◽  
Element Analysis ◽  
And Performance ◽  
Flush Fluid

Mud pump is an important component of drilling equipments, which transports flush fluid like mud or water into bore in order to cool drill and carry debris. In this paper, a novel radial mud pump directly driven by permanent magnet disc synchronous motor (PMDSM) is designed, the influence of different numbers of plunger cylinders on the pump’s flow pulsation is analyzed to determine the pump’s configuration and driving requirement, and the structure and performance parameters of the direct drive PMDSM are calculated by finite element analysis. Compared with conventional mud pumps, the novel pump is characteristic that the structure is simple, working stability and efficiency are greatly improved, also the life of the equipment is extended.

scholarly journals Performance Characteristics of a Dual-Stator, Spoke-Type Permanent Magnet Vernier Machine with Support Bar

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1068
Author(s):  
Jang-Hyun Park ◽  
Grace Firsta Lukman ◽  
Do-Hyun Kang ◽  
Jin-Woo Ahn
Keyword(s):  
Finite Element Analysis ◽  
Permanent Magnet ◽  
Direct Drive ◽  
Power Characteristic ◽  
Element Analysis ◽  
Average Deviation ◽  
Acceptable Range ◽  
Simulation And Experiment ◽  
Strong Candidate ◽  
And Performance

Permanent magnet Vernier machine (PMVM) is a strong candidate for direct-drive applications in low-speed region because its power characteristic is higher than conventional permanent magnet machine (PMM). In this paper, the design of a dual-stator PMVM (DSPMVM) with spoke-type rotor is introduced. As a radial motor with dual-stator configuration, one on the outer and inner side, the rotor is equipped with support bars for practical and simple manufacturing, which is the aim of this study. The characteristics and performance of the proposed machine with and without the support bar are examined with finite element analysis (FEA). The DSPMVM and the support were manufactured and tested through experiments to verify proposed structure. Both simulation and experiment results show that there is little to no difference in performance when the support bar is equipped. Furthermore, the average deviation between simulation and experiment results is approximately 7% which is within the acceptable range.

Slot/Pole Ratio Design of Tubular Permanent Magnet Linear Synchronous Motor

2011 ◽  
Vol 179-180 ◽  
pp. 1303-1308
Author(s):  
Guang Hui Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Permanent Magnets ◽  
Synchronous Motor ◽  
Current Analysis ◽  
Key Factors ◽  
Element Analysis ◽  
Linear Synchronous Motor ◽  
Element Technique

In terms of various applications of linear motor, there are different design objectives with varying concerns. In this paper, the objective is to obtain the slot/pole ratio for tubular permanent-magnet linear synchronous motor (TPMLSM). Direct-axis current analysis and finite element technique are utilized to investigate the optimal slot/slot ratio design of the TPMLSM. Based on electrical angle drift of slots between two neighboring permanent magnets, the slot/pole ratio (SPR), one of the key factors in design, is deduced by direct-axis current analysis. In contrast to those experiment methods, the proposed technique is convenient and swift; moreover it is proven that the method is efficient by 2-D axisymmetic finite element analysis.

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.

Research on Permanent Magnet Linear Synchronous Motor with a Special Pole Shape Based on Finite Element Analysis

2011 ◽  
Vol 143-144 ◽  
pp. 48-52
Author(s):  
Xu Dong Wang ◽  
Kai Cao ◽  
Jun Zhu ◽  
Hai Chao Feng ◽  
Xiao Zhuo Xu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Synchronous Motor ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Force Profile ◽  
Force Ripple ◽  
Set Up ◽  
Minimum Force

In this paper, a model of unit motor (16p15s) which is used for vertical elevator has been set up. And a modification of the primary geometry has been presented. In the new geometry, pole shoes are affixed to the primary poles. The finite element analysis (FEA) of various width of pole and different width of pole shoe have been carried out in this paper. The results show that the force profile of the proposed PMLSM has been improved. The minimum force ripple occurs in a suitable width of the pole shoes. And the back EMF constant is analyzed, too.

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