Modeling of conducted common mode perturbations in variable-speed drive systems

• Published in: IEEE transactions on electromagnetic compatibility Vol. 47; no. 4; pp. 1012 - 1021
• Main Authors: Costa, F., Vollaire, C., Meuret, R.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.11.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Cables; Chains; Circuits; Computer Science; Conducted perturbations; Drives; Electric power; Electrical engineering. Electrical power engineering; Electrical machines; Electromagnetic compatibility; Engineering Sciences; Exact sciences and technology; Induction motor drives; Induction motors; Information, signal and communications theory; Inverters; Mathematical analysis; Mathematical models; Matrices; Modeling and Simulation; Other; Perturbation methods; quadripolar matrices modeling; Telecommunications and information theory; variable-speed drive; Waveform; variable-speed drive; Electromagnetic compatibility; Perturbation; Experimental study; Frequency characteristic; Experimental result; Variable speed drive; Spurious signal; quadripolar matrices modeling; Electromagnetic interference; Electric machine; Matrix method; Conducted perturbations; Measurement method; Mathematical model; Electric current; Computing method; MOTOR BEARING CURRENTS
• ISSN: 0018-9375; 1558-187X
• DOI: 10.1109/TEMC.2005.857365

In this paper, common mode (CM) conducted perturbations are predicted and compared with experiments in a variable-speed drive system, thanks to a mixed approach based on experimental measurements and on the modeling of the complete CM circuit. Its different parts are considered and represented by a chain of quadripolar matrices: the inverter, the cables, and the induction motor. At last, it is shown that the parasitic currents in the system can be calculated in the different stages of the matrix chain. Experiments have successfully confirmed this approach.