EFFECT OF STATIC ECCENTRICITY AND STATOR INTER-TURN SHORT CIRCUIT COMPOSITE FAULT ON ROTOR VIBRATION CHARACTERISTICS OF GENERATOR
| Autor: | Yu-Ling He, Fa-Lin Wang, Shuting Wan, Gui-Ji Tang, Meng-Qiang Ke |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics
Stator business.industry Mechanical Engineering media_common.quotation_subject Composite number Structural engineering Fault (power engineering) law.invention Magnetic field Generator (circuit theory) law Turn (geometry) Physics::Chemical Physics Eccentricity (behavior) business Short circuit media_common |
| Zdroj: | Transactions of the Canadian Society for Mechanical Engineering. 39:767-781 |
| ISSN: | 0315-8977 |
| DOI: | 10.1139/tcsme-2015-0061 |
| Popis: | This paper investigates the radial rotor vibration characteristics under static air-gap eccentricity and stator inter-turn short circuit composite faults. The air-gap magnetic flux density is firstly deduced to obtain the unbalanced magnetic pull (UMP) on rotor. Then the rotor vibration characters, as well as the developing trend between the faulty parameters and the vibration amplitudes, are analyzed. Finally, the experiments are taken on a SDF-9 type simulating generator. It is shown that the radial deformation possibility, the 2nd, 4th, and 6th harmonic vibrations will be caused by the composite faults. Besides, the development of the inter-turn short circuit, the increment of the static eccentricity, and the rise of the exciting current will all get the deformation trend and the vibration amplitudes increased. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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