A typical motor or generator includes multiple design elements which can cause electromagnetic compatibility (EMC) issues. As well as the main inductances of the motor itself, there is also a parasitic capacitance between the coil and the housing, between the coil and the shaft, and between implemented sensors. This parasitic capacitance is responsible for common-mode coupling and capacitive coupling. This whitepaper shows how EMC-relevant properties of electrical machines can be extracted by 3D EM simulation.
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