In English

Control of a Permanent Magnet Synchronous Motor with Non-Sinusoidal Flux Density Distribution

Oskar Wallmark
Göteborg : Chalmers tekniska högskola, 2001. 54 s. Examensarbete - Chalmers tekniska högskola, Institutionen för elteknik, ISSN 1401-6184; 59E, 2001.
[Examensarbete på avancerad nivå]

This thesis discusses various aspects of controlling a permanent magnet synchronous machine with a non-sinusoidal rotor flux density distribution. The transient model of the machine in the rotor oriented dq-frame is derived, including the non-sinusoidal effects. The design of current and speed controllers is also discussed. The current controller is implemented in a permanent magnet machine, intended for hybrid electric vehicle applications, yielding good results. An algoritm to estimate the rotor position, based on high frequency signal injection and a non linear observer, is also implemented with good results. The flux linkage harmonics are measured and the predicted torque and current ripple are verified by measurements.

Nyckelord: Current control, non-sinusoidal flux density, permanent magnet, sensorless control, signal injection, speed control, synchronous machine, torque ripple

Publikationen registrerades 2012-10-09. Den ändrades senast 2013-04-04

CPL ID: 164528

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