Abstract
Simple models of synchronous machines are studied for torsional vibration analysis of electrically driven drive trains. A non-linear system model of the electrical machine is derived based on the two-axis equations. It is linearized to a small-signal model. The validity of these models is studied by comparing their results with the results from time-discretized finite element analysis. Four types of synchronous machine under torsional vibration are used as test cases. The results of the small-signal two-axis model show good agreement with the results of finite element analysis. All the three models predict negative damping of torsional vibration over a wide frequency range from zero to the supply frequency for all the four test machines.
| Original language | English |
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| Title of host publication | Proceedings of the 2016 22nd International Conference on Electrical Machines, ICEM 2016 |
| Publisher | IEEE |
| Pages | 2373-2379 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781509025381 |
| DOIs | |
| Publication status | Published - 2 Nov 2016 |
| MoE publication type | A4 Conference publication |
| Event | International Conference on Electrical Machines - Lausanne, Switzerland Duration: 4 Sept 2016 → 7 Sept 2016 Conference number: 22 http://www.icem.cc/2016/ |
Conference
| Conference | International Conference on Electrical Machines |
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| Abbreviated title | ICEM |
| Country/Territory | Switzerland |
| City | Lausanne |
| Period | 04/09/2016 → 07/09/2016 |
| Internet address |
Keywords
- damping coefficient
- finite element analysis
- small-signal models
- stiffness coefficient
- synchronous machines
- torsional vibration
- two-axis models