Redesign of Induction Machine
Authors
Møgelbjerg, Ejner Daniel Baltasar ; Hjortshøj, Niels Pihlkjær Kellmer
Term
4. term
Education
Publication year
2024
Abstract
Dette speciale undersøger et redesign af egernburs asynkronmaskinen UMP-3C3-210-25-4 for at udvikle en mere kompakt fan pack-løsning til Multi-Wing, med målet at reducere maskinens længde uden at gå på kompromis med ydeevne og omkostningseffektivitet. Arbejdet indledes med en gennemgang af asynkronmaskiners drift og brugen af en ækvivalentkredsmodel til at beskrive stationære forhold. Ækvivalentkredsparametre for to maskiner bestemmes og sammenlignes med maskinernes specifikationer og data fra belastningsforsøg for at validere modelleringsmetoden. De samme maskiner modelleres i MotorCAD, hvor de ækvivalentkredsbaserede resultater bruges til at validere MotorCAD, som beregner parametre ud fra geometri; valideringen viser, at MotorCAD kan forudsige maskinadfærd uden fysiske prototyper. Herefter opbygges og valideres en MotorCAD-model af UMP-3C3-210-25-4 mod virkelige driftsdata, som anvendes som baseline for designforbedringer. Med den validerede model undersøges flere muligheder for at reducere længden under hensyn til dele, der allerede findes hos producenten, for at sikre gennemførlighed og omkostninger; strategierne omfatter ændringer i viklingskonfigurationen, skalering af stator- og rotordiametre samt et redesign af maskinhuset. Uddraget indeholder ikke specifikke kvantitative resultater af længdereduktionen.
This thesis examines the redesign of the UMP-3C3-210-25-4 squirrel-cage induction machine to create a more compact fan pack for Multi-Wing, aiming to shorten machine length while preserving performance and cost-effectiveness. The work begins with an overview of induction machine operation and the use of an equivalent circuit model to represent steady-state behavior. Equivalent circuit parameters are identified for two machines and compared with datasheet ratings and load test data to validate the modeling approach. The same machines are modeled in MotorCAD, and the equivalent circuit results are used to validate MotorCAD, which derives parameters from geometry; this validation demonstrates MotorCAD’s ability to predict machine behavior without physical prototypes. A MotorCAD model of the UMP-3C3-210-25-4 is then built and validated against real-world data and used as a baseline for design improvements. Using the validated model, the study explores several length-reduction options that leverage manufacturer-available parts to ensure feasibility and cost, including changes to the winding configuration, scaling of stator and rotor diameters, and a redesign of the machine housing. The excerpt does not provide specific quantitative outcomes of the length reduction.
[This summary has been generated with the help of AI directly from the project (PDF)]
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