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A Review of Harmonic Detection, Suppression, Aggregation, and Estimation Techniques
Applied SciencesThe rapid growth of power electronics-based devices, such as electric vehicles and renewable energy systems, has introduced nonlinear components into power systems, generating high-frequency harmonics that distort current and voltage waveforms.
Kamran Daniel +5 more
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Sensors, 2015 The Shannon sampling principle requires substantial amounts of data to ensure the accuracy of on-line monitoring of roller bearing fault signals. Challenges are often encountered as a result of the cumbersome data monitoring, thus a novel method focused ...
Gang Tang +4 more
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Harmonic Detection for Power Grids Using Adaptive Variational Mode Decomposition
Energies, 2019 The harmonic pollution problem in power grids has become increasingly prominent with the large-scale application of power electronic equipment, nonlinear loads, and renewable energy.
Guowei Cai +4 more
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IEEE Access, 2021 Harmonic detection and control for power grids have always been major concerns for researchers. With the application of diverse semiconductor materials in power systems, numerous asymmetrical loads arise, resulting in increasingly poor performance of ...
Jianming Shi, Zhongmin Liu
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Applied Sciences, 2020 The current signal harmonic detection method(s) cannot reduce the errors in the analysis and extraction of mixed harmonics in the power grid. This paper designs a harmonic detection method based on discrete Fourier transform (DFT) and discrete wavelet ...
Guishuo Wang, Xiaoli Wang, Chen Zhao
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Applied Sciences, 2023 To address the problem of harmonic pollution in power systems, a harmonic and interharmonic detection method based on the adaptive order and the dominant factor algorithms is proposed.
Junsong Gong, Sanjun Liu
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On the detectability of higher harmonics with LISA
Physical Review D, 2023 Supermassive black hole binaries (SMBHBs) are expected to be detected by the future space-based gravitational-wave detector LISA with a large signal-to-noise ratio (SNR). This prospect enhances the possibility of differentiating higher harmonics in the inspiral-merger-ringdown (IMR) waveform.
Pitte, Chantal +4 more
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Harmonic ultrasonography for the detection of microlithiasis in the gallbladder [PDF]
Ultrasonography, 2014 To validate the use of harmonic ultrasonography (US) in the detection of gallbladder microlithiasis.From November 30, 2012, to January 18, 2014, fundamental US (FUS) and harmonic US with a high background noise (HUS-N) were performed for evaluation of gallbladder during the routine abdomen US.
Chul Soon Choi +8 more
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Harmonic detection device based on comb filter and subgroup algorithm
Gong-kuang zidonghua, 2017 :In view of problems of bad accuracy and real-time existed in harmonic and inter-harmonic detection algorithm, a harmonic and inter-harmonic detection algorithm based on comb filter and subgroup idea was proposed, and a harmonic monitoring device based ...
DAI Chaofan +4 more
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A harmonic detection method for power network based on wavelet transform Mallat algorithm
Gong-kuang zidonghua, 2014 For the problem that traditional Fourier transform method caused big errors when analyzing power signals of power network under unstable running condition, a harmonic detection method for power network was proposed based on wavelet transform Mallat ...
LEI Ruhai, HAO Zhe
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