The influence of optimization algorithm on the signal prediction accuracy of VMD-LSTM for the pumped storage hydropower unit

Journal of Energy Storage, Год журнала: 2023, Номер 78, С. 110187 - 110187

Опубликована: Дек. 20, 2023

Язык: Английский

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Hydrodynamic feature extraction and intelligent identification of flow regimes in vaneless space of a pump turbine using improved empirical wavelet transform and Bayesian optimized convolutional neural network

Energy, Год журнала: 2023, Номер 282, С. 128705 - 128705

Опубликована: Авг. 10, 2023

Язык: Английский

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Artificial intelligence-driven financial innovation: A robo-advisor system for robust returns across diversified markets

Expert Systems with Applications, Год журнала: 2025, Номер unknown, С. 126881 - 126881

Опубликована: Фев. 1, 2025

Язык: Английский

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Lightweight Vision Transformer for Incipient Cavitation Diagnosis in Centrifugal Pumps Via Multi-Data Fusion and Flow Visualization

Опубликована: Янв. 1, 2025

Язык: Английский

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Research on pressure fluctuation distribution law and rotor-stator interaction of pump-turbine in vaneless region of turbine mode

Frontiers in Energy Research, Год журнала: 2025, Номер 12

Опубликована: Апрель 4, 2025

The vibration issue of pumped storage power station unit will directly affect the safe and stable operation unit, pressure pulsation in vaneless region is an important index to evaluate stability unit. In order study fluctuation characteristics pump-turbine turbine mode, unsteady numerical simulation maximum head condition rated carried out this research. amplitude-frequency under different influence internal flow on are analyzed. results show that non-uniform field formed due rotor-stator interaction (RSI) between long short blades runner guide vanes. main frequency 5 f n , which half blade passing (BPF), is, combination frequency. sub-frequencies 10 15 20 . addition, amplitude at each higher than condition. a rotating cycle, discrete vortex channel gradually accumulates evolves into big scale side surface blade, aggravates region. intensity larger, reasonably explains reason why larger.

Язык: Английский

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A universal hydraulic-mechanical diagnostic framework based on feature extraction of abnormal on-field measurements: Application in micro pumped storage system

Applied Energy, Год журнала: 2023, Номер 357, С. 122478 - 122478

Опубликована: Дек. 20, 2023

Язык: Английский

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Analysis of transient pressure of pump-turbine during load rejection based on a multi-step extraction method

Energy, Год журнала: 2024, Номер 292, С. 130578 - 130578

Опубликована: Фев. 6, 2024

Язык: Английский

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Using bionic tubercles to control swirling flow instabilities of a hydraulic turbine during the load rejection process

Energy, Год журнала: 2024, Номер unknown, С. 133354 - 133354

Опубликована: Окт. 1, 2024

Язык: Английский

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Incipient Instability Real-Time Warning via Adaptive Wavelet Synchrosqueezed Transform: Onboard Applications from Compressors to Gas Turbine Engines

Energy, Год журнала: 2024, Номер 308, С. 132925 - 132925

Опубликована: Авг. 22, 2024

Язык: Английский

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Refined composite hierarchical multiscale Lempel-Ziv complexity: A quantitative diagnostic method of multi-feature fusion for rotating energy devices

Renewable Energy, Год журнала: 2023, Номер 218, С. 119310 - 119310

Опубликована: Сен. 13, 2023

Язык: Английский

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