scholarly journals Operating Performance of Pure Electric Loaders with Different Types of Motors Based on Simulation Analysis

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 617
Author(s):  
Xuefei Li ◽  
Chao Duan ◽  
Kun Bai ◽  
Zongwei Yao
Keyword(s):  
Permanent Magnet ◽  
Hydraulic System ◽  
Simulation Analysis ◽  
Permanent Magnet Synchronous Motor ◽  
Operating Performance ◽  
Synchronous Motor ◽  
The Other ◽  
Hydraulic Systems ◽  
Switched Reluctance Motors ◽  
Switched Reluctance

The electrification of loader designs can utilise several power motor types. Hence, this study investigates the operational performance of pure electric-powered loaders matched with three types of motors. Firstly, for the ZL08 loader, it is proposed that a pure electric-powered loader structure adopts two motors to drive the walking and hydraulic systems separately. Secondly, the dynamic parameters of the two motors were matched, and then, a joint vehicle dynamics model of the control system, the Multi-Body Dynamics (MBD) module and the material Discrete Element Method (DEM) module, was established. Finally, the performance of the walking system with three motors was tested by inserting three materials and using accelerating and climbing methods. The operating performance of the hydraulic system was tested by shovelling and unloading three materials. Results show that when inserting difficult materials, the loader’s walking system with switched reluctance motors is 9.74–21.2% deeper than that with the other two motors and 11.7–56.2% faster at the same depth. The hydraulic system consumes 3–15.7% less energy when matched with a permanent magnet synchronous motor than the other two motors. Pure electric loaders have the best operating performance when the walking system is matched with a switched reluctance motor, and the hydraulic system is matched with a permanent magnet synchronous motor.

scholarly journals Design and Performance Analysis of Permanent Magnet Synchronous Motor for Electric Vehicles Application

2021 ◽  
Vol 39 (3A) ◽  
pp. 394-406
Author(s):  
Mustafa Y. Bdewi ◽  
Ahmed M. Mohammed ◽  
Mohammed M. Ezzaldean
Keyword(s):  
Permanent Magnet ◽  
Electric Vehicles ◽  
Permanent Magnet Synchronous Motor ◽  
Optimization Procedure ◽  
Torque Ripple ◽  
Synchronous Motor ◽  
The Other ◽  
Torque Density ◽  
Finite Element Software ◽  
Machine Performance

In electrical vehicle applications, power density plays a significant role in improving machine performance. The main objective of this paper is to design and analyze the performance of in-wheel outer rotor permanent magnet synchronous motor (PMSM) used in electric vehicles based on a previously designed model. The key challenge is to achieve the best machine performance regarding the highest torque density and lowest torque ripple. This work also aims at reducing the machine cost by using permanent magnet (PM) material, which has less energy density than the PM used in the previously designed model. An optimization procedure is carried out to improve the generated torque, keeping the same aspects of size and volume of the selected machine. On the other hand, the other specifications of the machine are taken into consideration and are maintained within the acceptable level. According to their major impact on the machine’s performance, the most important parameters of machine designing is selected during the optimization procedure. This proposed machine is implemented and tested using the finite element software package “MagNet 7.4.1” with Visual Basic 16.0 programming language and MATLAB 9.5 Simulink for post-processing.

scholarly journals Design and Optimization of a High-Speed Switched Reluctance Motor

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6733
Author(s):  
Stefan Kocan ◽  
Pavol Rafajdus ◽  
Ronald Bastovansky ◽  
Richard Lenhard ◽  
Michal Stano
Keyword(s):  
Permanent Magnet ◽  
Output Power ◽  
High Speed ◽  
Permanent Magnet Synchronous Motor ◽  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Synchronous Motor ◽  
Switched Reluctance ◽  
Design And Optimization ◽  
Reluctance Motor

Currently, one of the most used motor types for high-speed applications is the permanent-magnet synchronous motor. However, this type of machine has high costs and rare earth elements are needed for its production. For these reasons, permanent-magnet-free alternatives are being sought. An overview of high-speed electrical machines has shown that the switched reluctance motor is a possible alternative. This paper deals with design and optimization of this motor, which should achieve the same output power as the existing high-speed permanent-magnet synchronous motor while maintaining the same motor volume. The paper presents the initial design of the motor and the procedure for analyses performed using analytical and finite element methods. During the electromagnetic analysis, the influence of motor geometric parameters on parameters such as: maximum current, average torque, torque ripple, output power, and losses was analyzed. The analysis of windage losses was performed by analytical calculation. Based on the results, it was necessary to create a cylindrical rotor shape. The rotor modification method was chosen based on mechanical analysis. Using thermal analysis, the design was modified to meet thermal limits. The result of the work was a design that met all requirements and limits.

Simulation of Pumping Unit Based on Simulink

2013 ◽  
Vol 340 ◽  
pp. 852-856
Author(s):  
Zi Kuan Zhang ◽  
Lin He ◽  
Li Yang
Keyword(s):  
Permanent Magnet ◽  
Simulation Analysis ◽  
Permanent Magnet Synchronous Motor ◽  
Direct Torque Control ◽  
Synchronous Motor ◽  
Torque Control ◽  
Normal Operation ◽  
High Torque ◽  
Pumping Unit ◽  
Stable Control

To study pumping unit of operating state in practical work, permanent magnet synchronous motor of direct torque control was used to model and simulate based on Matlab/Simulink software, and analyzed the waveforms change under normal operation and intermissive pumping. The results indicate that permanent magnet synchronous motor can operate smoothly under low speed and high torque condition, and can transit smoothly with different torque and acceleration. The proposed simulation system can achieve stable control, and its effectiveness is confirmed experimentally. Results of simulation analysis have some certain practical value for pumping unit driven by permanent magnet synchronous motor of direct torque control.

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