Ocean Engineering, Год журнала: 2024, Номер 318, С. 120082 - 120082
Опубликована: Дек. 27, 2024
Язык: Английский
Ocean Engineering, Год журнала: 2024, Номер 318, С. 120082 - 120082
Опубликована: Дек. 27, 2024
Язык: Английский
Information Fusion, Год журнала: 2025, Номер unknown, С. 102875 - 102875
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
2Mechanical Systems and Signal Processing, Год журнала: 2025, Номер 226, С. 112373 - 112373
Опубликована: Янв. 18, 2025
Язык: Английский
Процитировано
1Process Safety and Environmental Protection, Год журнала: 2025, Номер unknown, С. 106871 - 106871
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1Processes, Год журнала: 2025, Номер 13(2), С. 475 - 475
Опубликована: Фев. 9, 2025
When a single-phase grounding fault occurs in resonant system, due to the compensation effect of arc coil on there are problems such as signal amplitude and waveform being close, which leads difficulties line selection. This paper proposes selection discrimination method based MCEEMD-MPE normalization k-means clustering analysis algorithm. The is applied system. zero-sequence current obtained decomposed by MCCEEMD obtain number components. components with obvious characteristics selected for calculation multi-scale permutation entropy, not only avoids mode aliasing, but also highlights at different scales. Finally, algorithm used correctly distinguish non-fault lines. effectiveness verified real test field case. results show that can accurately identify under faults when occurs. recognition accuracy 100%, effectively improves rate grounding.
Язык: Английский
Процитировано
0Entropy, Год журнала: 2025, Номер 27(3), С. 277 - 277
Опубликована: Март 7, 2025
Variational Mode Decomposition (VMD) serves as an effective method for simultaneously decomposing signals into a series of narrowband components. However, its theoretical foundation, the classical Wiener filter, exhibits limited adaptability when applied to broadband signals. This paper proposes novel Variable Filtered-Waveform (VFW-VMD) address critical limitations in VMD, particularly handling and chirp By incorporating fractional-order constraints dynamically adjusting filter waveforms, proposed algorithm effectively mitigates mode mixing over-smoothing issues. The mathematical framework VFW-VMD is formulated, decomposition performance validated through simulations involving both synthetic real-world results demonstrate that superior extracting captures more rolling bearing fault features. work advances signal processing techniques, enhancing capability significantly improving practical diagnostic applications.
Язык: Английский
Процитировано
0Ocean Engineering, Год журнала: 2024, Номер 318, С. 120082 - 120082
Опубликована: Дек. 27, 2024
Язык: Английский
Процитировано
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