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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2021
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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) |
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Harmonic detection CBP-FIR filter ICBP-FIR filter Low-frequency harmonics Tokamak power supply Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
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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 |
work_keys_str_mv |
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