Fault diagnosis method for an aerospace generator rotating rectifier based on dynamic FFT technology

• Autorzy: Feng Sai , Cui Jiang , Zhang Zhuoran

Identyfikatory

DOI

10.24425/mms.2021.136607

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

aerospace generator; rotating rectifier; fault diagnosis; dynamic Fast Fourier Transform; feature extraction

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2021
• Tom: Vol. 28, nr 2
• Strony: 269--288
• Opis fizyczny: Bibliogr. 29 poz., rys., tab., wykr., wzory

Twórcy

autor

Feng Sai

• Nanjing University of Aeronautics and Astronautics, College of Automation Engineering, Nanjing City, Jiangsu Province, 211100, China

autor

Cui Jiang

• Nanjing University of Aeronautics and Astronautics, College of Automation Engineering, Nanjing City, Jiangsu Province, 211100, China

autor

Zhang Zhuoran

• Nanjing University of Aeronautics and Astronautics, College of Automation Engineering, Nanjing City, Jiangsu Province, 211100, China

Bibliografia

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Uwagi

1. This work was supported by the Fundamental Research Funds for the Central Universities (grant no. NS2017019).

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).