A novel detection method applied on low-frequency harmonics of Tokamak power supply

Non-characteristic low-frequency harmonics generated by non-linear devices have properties of small amplitude and non-stationary state, and contain complex side-lobe inter-harmonics, which is difficult to achieve the precise and real-time extraction for continuous inter-spectral harmonics. Aiming at...

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Autores principales: Yunxiang Tian, Yiyun Huang, Jun Li, Shenfei Yang, Huafeng Mao, Zhiwei Mao, Jing Lu
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Lenguaje:EN
Publicado: Elsevier 2021
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Acceso en línea:https://doaj.org/article/56b860b9f2924b639db196ecfdaeadf4
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spelling oai:doaj.org-article:56b860b9f2924b639db196ecfdaeadf42021-11-26T04:32:10ZA novel detection method applied on low-frequency harmonics of Tokamak power supply2352-484710.1016/j.egyr.2021.07.131https://doaj.org/article/56b860b9f2924b639db196ecfdaeadf42021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721005965https://doaj.org/toc/2352-4847Non-characteristic low-frequency harmonics generated by non-linear devices have properties of small amplitude and non-stationary state, and contain complex side-lobe inter-harmonics, which is difficult to achieve the precise and real-time extraction for continuous inter-spectral harmonics. Aiming at the problem, a novel method for detection based on cosine bandpass FIR (CBP-FIR) filter with fixed central frequency and faster operation speed is introduced. Considering the actual working condition, the improved cosine bandpass FIR (ICBP-FIR) filter is proposed, which can flexibly adjust the central frequency and phase range. ICBP-FIR filter has excellent harmonic detection precision, system stability margin and dynamic robustness characteristics for both inter-harmonics and integer harmonics. Analysis with MATLAB is adopted to improve the design process. The validity of ICBP-FIR algorithm is verified by experiments based on Digital Signal Processing (DSP).Yunxiang TianYiyun HuangJun LiShenfei YangHuafeng MaoZhiwei MaoJing LuElsevierarticleHarmonic detectionCBP-FIR filterICBP-FIR filterLow-frequency harmonicsTokamak power supplyElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 576-585 (2021)
institution DOAJ
collection DOAJ
language EN
topic Harmonic detection
CBP-FIR filter
ICBP-FIR filter
Low-frequency harmonics
Tokamak power supply
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle Harmonic detection
CBP-FIR filter
ICBP-FIR filter
Low-frequency harmonics
Tokamak power supply
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Yunxiang Tian
Yiyun Huang
Jun Li
Shenfei Yang
Huafeng Mao
Zhiwei Mao
Jing Lu
A novel detection method applied on low-frequency harmonics of Tokamak power supply
description Non-characteristic low-frequency harmonics generated by non-linear devices have properties of small amplitude and non-stationary state, and contain complex side-lobe inter-harmonics, which is difficult to achieve the precise and real-time extraction for continuous inter-spectral harmonics. Aiming at the problem, a novel method for detection based on cosine bandpass FIR (CBP-FIR) filter with fixed central frequency and faster operation speed is introduced. Considering the actual working condition, the improved cosine bandpass FIR (ICBP-FIR) filter is proposed, which can flexibly adjust the central frequency and phase range. ICBP-FIR filter has excellent harmonic detection precision, system stability margin and dynamic robustness characteristics for both inter-harmonics and integer harmonics. Analysis with MATLAB is adopted to improve the design process. The validity of ICBP-FIR algorithm is verified by experiments based on Digital Signal Processing (DSP).
format article
author Yunxiang Tian
Yiyun Huang
Jun Li
Shenfei Yang
Huafeng Mao
Zhiwei Mao
Jing Lu
author_facet Yunxiang Tian
Yiyun Huang
Jun Li
Shenfei Yang
Huafeng Mao
Zhiwei Mao
Jing Lu
author_sort Yunxiang Tian
title A novel detection method applied on low-frequency harmonics of Tokamak power supply
title_short A novel detection method applied on low-frequency harmonics of Tokamak power supply
title_full A novel detection method applied on low-frequency harmonics of Tokamak power supply
title_fullStr A novel detection method applied on low-frequency harmonics of Tokamak power supply
title_full_unstemmed A novel detection method applied on low-frequency harmonics of Tokamak power supply
title_sort novel detection method applied on low-frequency harmonics of tokamak power supply
publisher Elsevier
publishDate 2021
url https://doaj.org/article/56b860b9f2924b639db196ecfdaeadf4
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