De‐Rui Dai
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View article: UMP and Vibration Analysis for Eccentricity Detection in Permanent Magnet Synchronous Generators
UMP and Vibration Analysis for Eccentricity Detection in Permanent Magnet Synchronous Generators Open
This paper investigates the unbalanced magnetic pull (UMP) and vibration characteristics in permanent magnet synchronous generators (PMSGs) under different types of air gap eccentricity (AGE), including static eccentricity (SE), dynamic ec…
View article: A Novel Multistep Wavelet Convolutional Transfer Diagnostic Framework for Cross-Machine Bearing Fault Diagnosis
A Novel Multistep Wavelet Convolutional Transfer Diagnostic Framework for Cross-Machine Bearing Fault Diagnosis Open
Transfer learning has emerged as a potent technique for diagnosing bearing faults in environments with fluctuating operational parameters. Nevertheless, the majority of current transfer-learning-based fault diagnosis approaches focus prima…
View article: A Novel Multi-Task Self-Supervised Transfer Learning Framework for Cross-Machine Rolling Bearing Fault Diagnosis
A Novel Multi-Task Self-Supervised Transfer Learning Framework for Cross-Machine Rolling Bearing Fault Diagnosis Open
In recent years, intelligent methods based on transfer learning have achieved significant research results in the field of rolling bearing fault diagnosis. However, most studies focus on the transfer diagnosis scenario under different work…
View article: A comprehensive study on electromagnetic torque and rotor UMP based on an improved 3D static air-gap eccentricity model
A comprehensive study on electromagnetic torque and rotor UMP based on an improved 3D static air-gap eccentricity model Open
Static air-gap eccentricity (SAGE) is a common fault in generators. Current researches primarily focus on the parallel SAGE types, while the inclined static air-gap eccentricity (ISAGE) has been rarely investigated. This paper proposes an …
View article: Mechanical properties and insulation damage of PMSG stator end windings with eccentricity considerations
Mechanical properties and insulation damage of PMSG stator end windings with eccentricity considerations Open
The mechanical properties and insulation damage of stator end windings in permanent magnet synchronous generator (PMSG) are investigated by theoretical analysis, finite element analysis (FEA) and experiment verification. First, a theoretic…
View article: Cable Conduit Defect Recognition Algorithm Based on Improved YOLOv8
Cable Conduit Defect Recognition Algorithm Based on Improved YOLOv8 Open
The underground cable conduit system, a vital component of urban power transmission and distribution infrastructure, faces challenges in maintenance and residue detection. Traditional detection methods, such as Closed-Circuit Television (C…
View article: Comprehensive Investigation of Winding Mechanical Properties in Generators under <scp>RISC</scp>: Impact of Position, Degree, and Eccentricity
Comprehensive Investigation of Winding Mechanical Properties in Generators under <span>RISC</span>: Impact of Position, Degree, and Eccentricity Open
This paper provides an in‐depth study of the winding mechanical properties in generators under rotor interturn short circuit (RISC) cases. Unlike previous studies, this research investigates not only the influence of RISC degrees, but also…
View article: Impact of Radial Air-Gap Eccentricity on Stator End Winding Vibration Characteristics in DFIG
Impact of Radial Air-Gap Eccentricity on Stator End Winding Vibration Characteristics in DFIG Open
In this paper, qualitative theoretical derivations, finite element analysis (FEA) and experiments are used to investigate the electromagnetic force (EF) and vibration characteristics of end windings. In contrast to previous studies, this s…
View article: Analysis of the Characteristics of Stator Circulating Current Inside Parallel Branches in DFIGs Considering Static and Dynamic Air-Gap Eccentricity
Analysis of the Characteristics of Stator Circulating Current Inside Parallel Branches in DFIGs Considering Static and Dynamic Air-Gap Eccentricity Open
In this article, the stator winding circulating current inside parallel branches (CCPB) of a doubly fed induction generator (DFIG) is comprehensively investigated. Different from other studies, this study not only focuses on the CCPB in ra…
View article: Effect of static/dynamic air‐gap eccentricity on stator and rotor vibration characteristics in doubly‐fed induction generator
Effect of static/dynamic air‐gap eccentricity on stator and rotor vibration characteristics in doubly‐fed induction generator Open
This article has conducted a comprehensive study on the stator and rotor vibration characteristics of the doubly‐fed induction generator (DFIG) in the case of radial air gap eccentricity (RAGE). Differently from other previous studies, thi…