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An Electric Drive System Modelling Method Based on Module Behavior
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DOI：10.1109/icmmt45702.2019.8992334.png)
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Abstract
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Electric drive system is the key that divides electric vehicles from traditional fuel vehicles. It introduces new components such as non-linear inverter circuits, electric motors, power batteries and control circuits. Compared with traditional mechanical transmission system, the introduction of these power electronic devices greatly increases the magnitude of the electromagnetic interference, which influence the reliability of the power and communication system. Therefore, it is necessary to establish a system-level model to help engineer predict and optimize the system EMI. This paper proposes a system-level modelling method based on the behavior of the module, and validates it by comparing simulation results with test results. The model constructed by this method covers a wide frequency range and achieves high accuracy. It can help EMC engineers accurately predict EMI and perform further EMC optimization.
Keywords:
Electric drive system
Electric vehicle
System-level model
Vehicle EMC
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