| VEHICLE-LEVEL ELECTROMAGNETIC COMPATIBILITY
PREDICTION BASED ON MULTI-PORT NETWORK THEORY |
| Feng Gao1, Hanzhe Dai1, Jiawei Qi1, Zilong Wang2 |
1Chongqing University
2China Automotive Technology and Research Center |
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| ABSTRACT |
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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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Corresponding Author.
Feng Gao , Email. 
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