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2025-11-13
Research on the Anti-Electromagnetic Interference Performance of Motor Position Encoder by Cable Grounding Method
By
Progress In Electromagnetics Research C, Vol. 161, 246-254, 2025
Abstract
Cables are the main coupling path of electromagnetic interference, and the electromagnetic interference generated by cable conduction and radiation can interfere with the motor position encoder signal. Cable grounding can reduce the impact of this interference on the encoder signal. Therefore, this article first obtains the shielding mechanism of single end grounding and double end grounding of cables through theoretical analysis. Then, under two interference modes of plane wave radiation and adjacent cable radiation, the voltage frequency response and interference voltage peak and amplitude of single end grounding and double end grounding of the cable were compared. The results showed that the double end grounding of the cable shielding layer had better anti-electromagnetic interference effect. In addition, based on the double end grounding, comparing the interference voltages of different grounding resistances, cable lengths, shield thicknesses, and load conditions, some conclusions about the changes in interference voltage have been obtained.
Citation
Chuan Xiang, Yunxiang Nan, Huimin Shi, Yusen Zhang, and Shukuan Zhang, "Research on the Anti-Electromagnetic Interference Performance of Motor Position Encoder by Cable Grounding Method," Progress In Electromagnetics Research C, Vol. 161, 246-254, 2025.
doi:10.2528/PIERC25082803
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