Speed position estimation by demodulating rotor slot harmonics

Date

2011-11-11

Author

Keysan, Ozan

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It is well known that slotting harmonics exist in most of the electrical machines. These harmonics may supply valuable information for condition monitoring of bearings, windings or rotor bars. Utilization of these harmonics for rotor speed and position estimation is limited mainly due to long sampling periods required by spectral estimation techniques. In this study, a novel speed and position estimation method is proposed that does not need any kind of spectral estimation. In this approach extracting the required information can be done within a typical control cycle of a vector controlled drive algorithm. In the application of the method, higher order rotor slot harmonics have been utilized. The approach is explained in the paper and illustrated with experimental results.

Subject Keywords

Rotors, Harmonic analysis, Power harmonic filters, Coils, Estimation, Induction motors, Demodulation

URI

https://hdl.handle.net/11511/44720

DOI

https://doi.org/10.1109/icelmach.2010.5607856

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

O. Keysan, “Speed position estimation by demodulating rotor slot harmonics,” 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44720.