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Wideband Impedance Measurements and Modeling of DC Motors for EMI Predictions

Abstract : In electromagnetic interference prediction, dc motors are usually modeled as a source and a series impedance. Previous researches only include the impedance of the armature, while neglecting the effect of the motor's rotation. This paper aims at measuring and modeling the wideband impedance of a dc motor under operating conditions. These measurements are performed by injecting a small signal, using a method based on conducted susceptibility measurement setups as described in military standards. Different setups are developed to cover a wideband, from 0 Hz up to 200 MHz. The measurements provide satisfying results for the wideband impedance of the rotating dc motor, and the setups’ validation is discussed. Finally, the resulting impedance is modeled as a passive impedance network.
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Submitted on : Monday, January 12, 2015 - 4:38:02 PM
Last modification on : Wednesday, September 16, 2020 - 5:48:58 PM



Fatou Diouf, Frank Leferink, Fabrice Duval, Mohamed Bensetti. Wideband Impedance Measurements and Modeling of DC Motors for EMI Predictions. IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers, 2015, 57 (2), pp.180-187. ⟨10.1109/TEMC.2014.2370454⟩. ⟨hal-01102405⟩



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