For predicting the performance characteristics of highly utilized induction machines, commonly finite element analysis (FEA) is applied. If only the stationary behavior is of interest, both time-harmonic and transient calculations are feasible. Both procedures offer benefits and drawbacks regarding precision and computing time. In this paper the stationary torque-slip-characteristic of a squirrel cage induction machine for electric vehicle application is calculated by means of time-harmonic and transient FEA. The simulation results are compared to measurements taken on the test bench. For low saturation levels the time-harmonic and transient simulation produce nearly equivalent stationary torque results. For high saturation levels, the commonly used approach for nonlinear time-harmonic calculation is to use a corrected magnetization curve. It is shown that the assumption of sinusoidal time variation of the magnetic field strength usually made in this case results in a torque error increasing with the saturation level for the time-harmonic calculation.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:87079 |
| Date | 13 September 2023 |
| Creators | Schuhmann, Thomas, Cebulski, Bernd, Paul, Stephan |
| Publisher | IEEE |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/acceptedVersion, doc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 10.1109/ICELMACH.2014.6960309 |
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