Influence of Travelling Current Linkage Harmonics on Inductance Variation, Torque Ripple and Sensorless Capability of Tooth-Coil Permanent-Magnet Synchronous Machines

Ponomarev, Pavel; Petrov, Ilya; Pyrhönen, Juha (2014)
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Post-print / final draft

Ponomarev, Pavel
Petrov, Ilya
Pyrhönen, Juha
2014
Institute of Electrical and Electronics Engineers (IEEE)

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https://urn.fi/URN:NBN:fi-fe2015061010182

Tiivistelmä

This paper introduces an important source of torque ripple in PMSMs with tooth-coil windings (TC-PMSMs). It is theoretically proven that saturation and cross-saturation phenomena caused by the non-synchronous harmonics of the stator current linkage cause a synchronous inductance variation with a particular periodicity. This, in turn, determines the magnitude of the torque ripple and can also deteriorate the performance of signal-injection-based rotor position estimation algorithms. An improved dq- inductance model is proposed. It can be used in torque ripple reduction control schemes and can enhance the self-sensing capabilities of TC-PMSMs

Lähdeviite

Pavel Ponomarev, Ilya Petrov, Juha Pyrhönen (2014) Influence of Travelling Current Linkage Harmonics on Inductance Variation, Torque Ripple and Sensorless Capability of Tooth-Coil Permanent-Magnet Synchronous Machines. IEEE Transactions on Magnetics 01/2014; 50(1):1-8. DOI:10.1109/TMAG.2013.2283067

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