Control of a saturated Permanent Magnet
Author
Adrian, Opritescu
Term
4. term
Education
Publication year
2010
Submitted on
2010-06-02
Pages
68
Abstract
Elektriske maskiner bruges i mange forskellige anvendelser. Dette projekt undersøger ikke-lineær adfærd i en indre permanentmagnet-synkronmaskine (IPMSM). I sådan en motor er induktansen forskellig i den direkte (d) og kvadratur (q) akse — interne akser, der bruges til at beskrive maskinens magnetiske egenskaber. Denne forskel kaldes saliens. Vi undersøger, hvordan induktansen varierer for at observere saliens, og bestemmer d- og q-akse-induktans samt moment gennem statiske tests. På baggrund af laboratoriedata opbygges en model af IPMSM, der inkluderer magnetisk mætning. Feltorienteret styring (Field Oriented Control, FOC) implementeres og testes på motoren. For at validere styringen sammenlignes resultater fra laboratoriet med simuleringer.
Electric machines are used in many applications. This project studies nonlinear behavior in an interior permanent magnet synchronous machine (IPMSM). In such a motor, inductance differs along the direct (d) and quadrature (q) axes—internal axes used to describe the machine’s magnetic behavior. This difference is called saliency. We examine how inductance varies to observe saliency, and we determine d-axis and q-axis inductance and torque from static tests. Using laboratory data, we build a model of the IPMSM that includes magnetic saturation. We implement Field Oriented Control (FOC) and test it on the machine. To validate the control, we compare laboratory measurements with simulation results.
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