Control of a Permanent Magnet Synchronous Motor with Non-Sinusoidal Flux Density Distribution
Ladda ner
Typ
Examensarbete för masterexamen
Master Thesis
Master Thesis
Program
Publicerad
2001
Författare
Wallmark, Oskar
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
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.
Beskrivning
Ämne/nyckelord
Elkraftteknik , Electric power engineering