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International Journal of Automotive Technology

, Volume 20, Issue 6, pp 1277–1285 | Cite as

Vehicle-Level Electromagnetic Compatibility Prediction Based on Multi-Port Network Theory

  • Feng GaoEmail author
  • Hanzhe Dai
  • Jiawei Qi
  • Zilong Wang
Article

Abstract

This paper proposes a new methodology based on the multi-port network theory to predict the vehicle-level electromagnetic compatibility performance. The original EMC problem is firstly converted to a network by separating the electrical large structures and electrical small components. The impedance is proposed to describe the coupling process of network to eliminate the influence of port impedance on network. Based on this network model, the relationship between the exciting sources and the sensitive components is set up using the multi-port network theory. Furthermore, some application problems, such as measurement of parameters, are also discussed. After validated by a bench test, this methodology for vehicle level electromagnetic compatibility was further applied to predict and improve the low frequency radiated emission of an electric vehicle. The application results show that it can be used to predict electromagnetic interference and analyze the main exciting source satisfactorily.

Key Words

Electromagnetic compatibility (EMC) Multi-port network theory Numerical simulation Electric vehicle 

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Notes

Acknowledgement

This research was supported the National Key R&D Program of China under grant 2017YFB0102504, Scientific Technological Plans of Chongqing under grant cstc2017zdcy-zdzx0042. Thanks to the China Automotive Technology and Research Center, who provided the EV and the EMC laboratory.

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Copyright information

© KSAE/ 111-19 2019

Authors and Affiliations

  1. 1.School of Automotive EngineeringChongqing UniversityChongqingChina
  2. 2.Department of Vehicle Electronic and Electrical SystemChina Automotive Technology and Research CenterDongli District, TianjinChina

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