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Title: | Low cogging torque PMSM drives with rectangular current control |
Authors: | Ştirban, Alin Nicuşor |
Subjects: | Maşini sincrone Magneţi permanenţi Maşini sincrone Metoda elementelor finite Magneţi permanenţi Motoare de acţionare Teză de doctorat |
Issue Date: | 2010 |
Publisher: | Timişoara: Editura Politehnica |
Citation: | Ştirban, Alin Nicuşor. Low cogging torque PMSM drives with rectangular current control. Timişoara: Editura Politehnica, 2010 |
Series/Report no.: | 6 Inginerie Electrică;19 |
Abstract: | The present thesis investigates an interior permanent magnet synchronous motor with 8 rotor poles and nonuniform (6+6) stator slots and concentrated windings fed with trapezoidal currents. The electromagnetic design of the proposed solution was done algorithmically and it was validated using Finite Element Method (FEM). FEM-analysis offers direct results for torque, back-EMF and inductances. Whenever possible, FEM-calculated characteristics are compared with experimentally obtained ones, in order to validate the FEM-computations for this type of machine. The BLDC model developed in this thesis takes into account the phase commutation phenomenon, the real waveforms of back-EMF and inductances, based on FEM calculations. For the sensorless control of brushless DC PM motor drive, this thesis introduces and investigates a FEM assisted position and speed observer, based on the line-to-line PM flux linkage estimation. Even if the proposed observer relies on the fundamental model of the machine, a safe starting strategy under heavy load torque, called I-f control, is used, with seamless transition to the proposed sensorless control. |
URI: | http://localhost:8080/xmlui/handle/123456789/798 |
ISSN: | 1842-7022 |
Appears in Collections: | Teze de doctorat/Phd theses |
Files in This Item:
File | Description | Size | Format | |
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BUPT_TD_Stirban Alin.pdf | 4.63 MB | Adobe PDF | View/Open |
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