Imbalance Detection of Rotor Rotational Speed Using Doppler Radar

Autor:	Young-Jae Choi, In-Sik Choi
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	doppler radar dynamic radar cross-section imbalance detection spectrogram wind turbine Electrical engineering. Electronics. Nuclear engineering TK1-9971 Electricity and magnetism QC501-766
Zdroj:	Journal of Electromagnetic Engineering and Science, Vol 21, Iss 2, Pp 111-118 (2021)
Druh dokumentu:	article
ISSN:	2671-7255 2671-7263
DOI:	10.26866/jees.2021.21.2.111
Popis:	In operating a wind turbine, both predictive and condition-based maintenances are required to minimize the downtime caused by maintenance. The imbalance of rotor rotational speed is an important factor for diagnosing wind turbine failures. The rotational speed imbalance can be caused by accumulated damage or the accumulation of ice, dust, and moisture. In this paper, we proposed a method for detecting the rotational speed imbalance of a wind turbine using a Doppler radar. We calculated the difference in the rotational speed for different times using spectrograms obtained by observing the wind turbine with a Doppler radar and determined the rotational speed imbalance using the fast Fourier transform. The performance of the proposed algorithm was verified using both synthetic and numerical data.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/3600ea99e0ab444b83e20a4e2fae92a7 Zobrazit plný text záznamu View record in DOAJ