- Tytuł:
- Fault diagnosis method for an aerospace generator rotating rectifier based on dynamic FFT technology
- Autorzy:
-
Feng, Sai
Cui, Jiang
Zhang, Zhuoran - Powiązania:
- https://bibliotekanauki.pl/articles/1849142.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
aerospace generator
rotating rectifier
fault diagnosis
dynamic Fast Fourier Transform
feature extraction - Opis:
- A fault diagnosis method for the rotating rectifier of a brushless three-phase synchronous aerospace generator is proposed in this article. The proposed diagnostic system includes three steps: data acquisition, feature extraction and fault diagnosis. Based on a dynamic Fast Fourier Transform (FFT), this method processes the output voltages of aerospace generator continuously and monitors the continuous change trend of the main frequency in the spectrum before and after the fault. The trend can be used to perform fault diagnosis task. The fault features of the rotating rectifier proposed in this paper can quickly and effectively distinguish single and double faulty diodes. In order to verify the proposed diagnosis system, simulation and practical experiments are carried out in this paper, and good results can be achieved.
- Źródło:
-
Metrology and Measurement Systems; 2021, 28, 2; 269-288
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł