scholarly journals Computer Aided Modeling and Analysis of Five-Phase PMBLDC Motor Drive for Low Power High Torque Application

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
M. A. Inayathullaah ◽  
R. Anita
Keyword(s):  
Low Power ◽  
High Efficiency ◽  
Dynamic Performance ◽  
Torque Ripple ◽  
Performance Simulation ◽  
Modeling And Analysis ◽  
Brushless Dc ◽  
New Type ◽  
High Torque ◽  
Permanent Magnet Brushless Dc

In order to achieve high torque at low power with high efficiency, a new five-phase permanent magnet brushless DC (PMBLDC) motor design was analyzed and optimized. A similar three-phase motor having the sameD/Lratio (inner diameter (D) and length of the stator (L)) is compared for maximum torque and torque ripple of the designed five-phase PMBLDC motor. Maxwell software was used to build finite element simulation model of the motor. The internal complicated magnetic field distribution and dynamic performance simulation were obtained in different positions. No load and load characteristics of the five-phase PMBLDC motor were simulated, and the power consumption of materials was computed. The conformity of the final simulation results indicates that this method can be used to provide a theoretical basis for further optimal design of this new type of motor with its drive so as to improve the starting torque and reduce torque ripple of the motor.

Research on Brushless Permanent-Magnet DC Motor of Electric Scooter Based on Ansoft

2011 ◽  
Vol 295-297 ◽  
pp. 2594-2598
Author(s):  
Qi Ping Chen ◽  
Hong Yu Shu ◽  
Kai Ren ◽  
Lai Peng
Keyword(s):  
Permanent Magnet ◽  
Dynamic Performance ◽  
Torque Ripple ◽  
Performance Simulation ◽  
Element Simulation ◽  
Electric Scooter ◽  
New Type ◽  
Starting Process ◽  
Basic Features ◽  
Permanent Magnet Dc Motor

In order to obtain good starting performance of the electric scooter driven by brushless permanent-magnet direct circuit motor(BLPMDCM)，modules of RMxprt and Maxwell 2D in Ansoft software are used to build finite element simulation model of BLPMDCM. We simulated and studied the basic features and starting process of BLPMDCM. The results of internal magnetic field distribution and dynamic performance simulation are obtained when the motors are in different positions. The results provide a theoretical basis to further optimize the design, improve the starting torque and reduce torque ripple for this new type of permanent magnet motor and its control system.

Study and design of dual stator permanent magnet machine with spoke-type configurations using phase-group concentrated-coil windings

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1381-1389
Author(s):  
Dezhi Chen ◽  
Chengwu Diao ◽  
Zhiyu Feng ◽  
Shichong Zhang ◽  
Wenliang Zhao
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Low Cost ◽  
Dynamic Performance ◽  
Torque Ripple ◽  
Permanent Magnet Machine ◽  
Torque Density ◽  
Phase Group ◽  
High Torque ◽  
Simulation Results

In this paper, a novel dual-stator permanent magnet machine (DsPmSynM) with low cost and high torque density is designed. The winding part of the DsPmSynM adopts phase-group concentrated-coil windings, and the permanent magnets are arranged by spoke-type. Firstly, the winding structure reduces the amount of copper at the end of the winding. Secondly, the electromagnetic torque ripple of DsPmSynM is suppressed by reducing the cogging torque. Furthermore, the dynamic performance of DsPmSynM is studied. Finally, the experimental results are compared with the simulation results.

scholarly journals Harmonic Analysis on Torque Ripple of Brushless DC Motor Based on Advanced Commutation Control

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yanpeng Ji ◽  
Bin Li ◽  
Jingcheng Sun
Keyword(s):  
Harmonic Analysis ◽  
Influencing Factor ◽  
Torque Ripple ◽  
Current Harmonics ◽  
Phase Current ◽  
Brushless Dc ◽  
Harmonic Analysis Method ◽  
Permanent Magnet Brushless Dc ◽  
Relationship Of ◽  
The Relationship

This paper investigates the relationship between current, back electromotive force (back-EMF), and torque for permanent-magnet brushless DC (PM BLDC) motors under advanced commutation control from the perspective of harmonics. Considering that the phase current is the influencing factor of both torque and torque ripple, this paper firstly analyzes the effects of advanced commutation on phase current and current harmonics. And then, based on the harmonics of the phase current and back-EMF, the torque harmonic expressions are deduced. The expressions reveal the relationship of harmonic order between the torque, phase current, and back-EMF and highlight the different contribution of individual torque harmonic to the total torque ripple. Finally, the proposed harmonic analysis method is verified by the experiments with different speed and load conditions.

Permanent magnet brushless DC machines (PMBLDC) for general purpose – part I, the specificity of construction, methods of analysis

2018 ◽  
Vol 2 (1) ◽  
pp. 42-46 ◽  
Author(s):  
Tomasz Kołacz ◽  
Jerzy Skwarczyński
Keyword(s):  
Low Power ◽  
Permanent Magnet ◽  
General Purpose ◽  
Electromagnetic Torque ◽  
Brushless Dc ◽  
Construction Methods ◽  
Methods Of Analysis ◽  
New Information ◽  
Torque Generation ◽  
Permanent Magnet Brushless Dc

The paper presents research on properties of the low power PMBLDC motor, designed to drive a bicycle. In the first part of the study the conditions of the torque generation were analyzed. The purpose of the article is to provide new information about PMBLDC motors and their properties. In the first part of the article the motor construction and torque generation in it were studied. Also the methodology of analysis were presented. The second part of the article will treat on the measurements and calculations of EMF, currents, voltages, and electromagnetic torque.

Permanent magnet brushless DC machines (PMBLDC) for general purpose - part II, results of laboratory measurements

2018 ◽  
Vol 3 (2) ◽  
pp. 52-57
Author(s):  
Tomasz Kołacz ◽  
Krzysztof Madura ◽  
Jerzy Skwarczyński ◽  
Dominik Zabawa
Keyword(s):  
Low Power ◽  
Permanent Magnet ◽  
General Purpose ◽  
Electromagnetic Torque ◽  
Laboratory Measurements ◽  
Brushless Dc ◽  
New Information ◽  
Torque Generation ◽  
Permanent Magnet Brushless Dc

The paper presents research on properties of the low power PMBLDC motor, designed to drive a bicycle. In the first part of the study the conditions of the torque generation were analyzed. The purpose of the article is to provide new information about PMBLDC motors and their properties. In the first part of the article the motor construction and torque generation in it were studied. Also the methodology of analysis were presented. The second part of the article will treat on the measurements and calculations of EMF, currents, voltages, and electromagnetic torque.

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