Home Journals Articles Updates About
CN
image
收藏切换
Electrical System Instability Boundary Prediction of A Pure Electric Vehicle under High-Speed Conditions
收藏切换
PDF
Guozong Zhang1, Xing Chen2, Junchao Zhou1
Automotive Engineer | 2024, (10) : 23 - 30
Less
收藏切换
Automotive Engineer | 2024, (10): 23-30
Electrical System Instability Boundary Prediction of A Pure Electric Vehicle under High-Speed Conditions
Full
Guozong Zhang1, Xing Chen2, Junchao Zhou1
Affiliations
  • 1 Sichuan University of Science & Engineering, Zigong 644002
  • 2 Chongqing University of Arts and Sciences, Chongqing 402160
Published: 2024-10-15 doi: 10.20104/j.cnki.1674-6546.20240082
Outline
收藏切换

Under high-frequency variable loads, EV electrical system is prone to causing bus voltage oscillations and instability. A small-signal model of the vehicle’s electrical system has been established, obtaining the output impedance of the system source-transformer and the input impedance of the motor load. Based on the traditional impedance ratio criterion and combined with the system’s stability margin, the stability determination principle of the vehicle’s electrical system has been derived. By using a Bode diagram for predicting system instability, research is conducted to explore the instability boundary of pure electric vehicle under high-speed conditions. The simulation verification results show that the vehicle’s maximum speed shall not exceed 188 km/h, and torque variation of hub motor will affect vehicle stability, the torque mutation of single hub motor shall not exceed 220 N·m, which is basically consistent with theoretical analysis results. The results prove that this stability determination principle can predict instability boundary of vehicle electrical system to some extent.

Vehicle electrical system  /  Small signal model  /  Impedance ratio  /  Instability prediction  /  Instability boundary
Guozong Zhang, Xing Chen, Junchao Zhou. Electrical System Instability Boundary Prediction of A Pure Electric Vehicle under High-Speed Conditions[J]. Automotive Engineer, 2024 , (10) : 23 -30 . DOI: 10.20104/j.cnki.1674-6546.20240082
Appendix
Less
Year 2024 volume Issue 10
PDF
149
47
Cite this Article
BibTeX
Article Info
doi: 10.20104/j.cnki.1674-6546.20240082
  • Online Date：2025-11-25
  • Published：2024-10-15
Article Data
Affiliations
History
  • Revised：2024-04-23
Funding
Affiliations
    1 Sichuan University of Science & Engineering, Zigong 644002
    2 Chongqing University of Arts and Sciences, Chongqing 402160
References
Share
https://castjournals.cast.org.cn/joweb/qcgcs/EN/10.20104/j.cnki.1674-6546.20240082
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House