Modified winding function approach to stator fault modelling of synchronous generator
| Autor: | Lihua Xie, Padmanabhan Sampath Kumar, Meng Yeong Lee, Yejin Chen, Sivakumar Nadarajan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Stator 020209 energy 020208 electrical & electronic engineering Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Permanent magnet synchronous generator Magnetic field Winding function law.invention Control theory Salient Electromagnetic coil law Harmonics 0202 electrical engineering electronic engineering information engineering Electronic engineering business Air gap (plumbing) |
| Zdroj: | ICCA |
| Popis: | Stator winding insulation failure has been one of the major faults in electrical machines due to the degradation of winding insulation materials. The turn-to-turn short circuit fault indicates an early stage of insulation failure. This fault produces distortion of space harmonics in the air gap magnetic field. Capturing these harmonics and reflecting their effect on the measurable quantities from stator would improve the accuracy of the model representing the machine under faulty condition. In this paper an approach for simulating a salient pole synchronous generator with stator inter-turn fault using a phase domain model is proposed. To account for the space harmonics in the model, Modified Winding Function Approach is utilized to compute the inductances of the machine winding. The developed model is compared with the experimental data for verifying the accuracy of the developed model. |
| Databáze: | OpenAIRE |
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