Simulation analysis of a new electric dynamic load simulator based on double-stator permanent-magnet synchronous motor

2012 ◽  
Author(s):  
Zhe Wang ◽  
Mingyan Wang ◽  
Guoqiang Wang
Keyword(s):  
Permanent Magnet ◽  
Dynamic Load ◽  
Simulation Analysis ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Load Simulator

Research on dynamic load spectrum of electric vehicle transmission system based on underdamping characteristic

2021 ◽  
pp. 095440702110689
Author(s):  
Du Guo ◽  
Xing Chen ◽  
Yanli Yin ◽  
Hui Liu
Keyword(s):  
Permanent Magnet ◽  
Electric Vehicle ◽  
Dynamic Load ◽  
Mechanical Model ◽  
Failure Modes ◽  
Permanent Magnet Synchronous Motor ◽  
Time History ◽  
Synchronous Motor ◽  
Transmission System ◽  
Load Spectrum

Overall, the electric vehicle transmission system shows an underdamped characteristic. Under changeable road conditions and high-frequency response for the motor, the resulting dynamic load environment may cause multiple failure modes, such as contact fatigue failure and bending fatigue fracture, for the transmission component, which limits the electric vehicle transmission component lifespan and system reliability. To reflect the dynamic load characteristics of the electric vehicle transmission system using a permanent magnet synchronous motor as a power source and accurately calculate the dynamic load of the transmission system, a high-speed helical gear-rotor-bearing coupling mechanical model for the electric vehicle transmission system was built based on simulating actual operation working conditions of the electric vehicle and considering the external load excitation caused by the Electromagnetic torque of the permanent magnet synchronous motor and vehicle driving resistant change as well as internal excitation caused by gear time-varying meshing rigidness and meshing error. Through simulation calculation of the mechanical model, the dynamic meshing force of the gear pair and dynamic contact force of the support bearing was obtained. Based on the Hertz contact theory, the stress-time history was obtained for the key parts, the rain flow counting method was adopted for the statistics collection and analysis of the stress-time history, and the fatigue load spectrum for various key parts of the transmission system was obtained. The result lays a foundation for the fatigue life prediction and reliability analysis for the pure electric vehicle transmission system.

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.

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.

scholarly journals Sensorless Control of Permanent Magnet Synchronous Motor Based on the Improved Sliding Mode Observer

2018 ◽  
Vol 36 (4) ◽  
pp. 754-760 ◽  
Author(s):  
Zhiguang Hua ◽  
Manfeng Dou ◽  
Dongdong Zhao ◽  
Liming Yan ◽  
Junpeng Ji ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Simulation Analysis ◽  
Sliding Mode ◽  
Sensorless Control ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Sliding Mode Observer ◽  
Experimental Result ◽  
Result Show ◽  
Speed Accuracy

Sliding mode observer (SMO) which has a strong robustness is used in the sensorless control system of permanent magnet synchronous motor (PMSM). The method is usually used to estimate the rotor position although it has the chattering problem. According to the causes of the chattering in traditional SMO, the method of improved sliding mode observer (ISMO) is proposed in this paper. Sign function is replaced by the saturation function to suppress the chattering problem, and the speed of PMSM is estimate when combined with field oriented control (FOC) method. A hardware platform of 2.7 kW, 10 000 r/min PMSM is built to verify the control effectiveness of ISMO. Simulation analysis and experimental result show that ISMO can estimate the rotor speed accuracy and reduce the chatting at the same time.

Based on Orthogonal Experiment Method PID Simulation Control of Pumping Unit

2013 ◽  
Vol 404 ◽  
pp. 580-585 ◽  
Author(s):  
Zi Kuan Zhang ◽  
Lin He
Keyword(s):  
Permanent Magnet ◽  
Simulation Analysis ◽  
Orthogonal Experiment ◽  
Dynamic Performance ◽  
Permanent Magnet Synchronous Motor ◽  
Direct Torque Control ◽  
Synchronous Motor ◽  
Torque Control ◽  
Pumping Unit ◽  
Control Accuracy

To study control accuracy of pumping unit system and improve dynamic performance, after ensure every influencing factor, carried out orthogonal test. Permanent magnet synchronous motor of direct torque control was used to model and simulate with experiment parameters based on Matlab/Simulink software, analyzed optimal PID parameter, and can avoid mass and complex test that determine PID parameter combination. The simulation results indicate that it can increase control accuracy clearly and decrease response time, and can reach optimum system performance. Results of simulation analysis have some certain practical value for pumping unit driven by permanent magnet synchronous motor of direct torque control.

Study of Reactance Evaluation Methods in Saturated Magnetic Field for Permanent Magnet Synchronous Motor

2006 ◽  
Vol 126 (12) ◽  
pp. 1722-1729 ◽  
Author(s):  
Akeshi Takahashi ◽  
Haruo Koharagi ◽  
Satoshi Kikuchi ◽  
Kazumasa Ide ◽  
Kazuo Shima
Keyword(s):  
Magnetic Field ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Evaluation Methods
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