Extraction of Common-Mode Impedance of an Induction Motor by Using All-Phase FFT With Intermediate-Frequency Filtering

Autor:	Shize Ye, Tao Wang, Xiaoyan Zheng, Tianze Li, Henglin Chen
Rok vydání:	2021
Předmět:	Physics Intermediate frequency Acoustics Fast Fourier transform Phase (waves) Electrical and Electronic Engineering Condensed Matter Physics Inductor Electrical impedance Infinite impulse response Atomic and Molecular Physics and Optics Induction motor Electromagnetic interference
Zdroj:	IEEE Transactions on Electromagnetic Compatibility. 63:1593-1598
ISSN:	1558-187X 0018-9375
DOI:	10.1109/temc.2021.3050457
Popis:	This letter proposes an online extraction method of common-mode (CM) impedance of induction motor based on all-phase spectrum calculation. All-phase fast Fourier transform with intermediate-frequency filtering (ApFFTIF) is proposed based on infinite impulse response filter, zero-phase filtering technique, and all-phase fast Fourier transform. By using ApFFTIF, the accurate amplitude spectrum together with accurate phase spectrum of CM impedance of induction motor are extracted. Then genetic algorithm is used to establish the model of CM impedance of inductor motor. Finally, through comparing CM impedances extracted by using different spectrum calculation methods, and through comparing measured and calculated CM currents, the accuracy of the proposed method is validated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::317b1ba09c0e5c9bebae768a314c14da https://doi.org/10.1109/temc.2021.3050457 Zobrazit plný text záznamu