4.6 Article

A comprehensive study on stator vibrations in synchronous generators considering both single and combined SAGE cases

Related references

Note: Only part of the references are listed.
Article Energy & Fuels

Influence of Rotor Eccentricity On Electromagnetic Performance of 2-pole/3-slot PM Motors

Tianran He et al.

Summary: This paper investigates the impact of static and dynamic rotor eccentricities on the electromagnetic performance of a permanent magnet motor. It finds that static rotor eccentricity leads to an imbalance in the fundamental back-EMFs, while dynamic rotor eccentricity affects the harmonic contents and phase angles of the back-EMFs, causing asymmetric waveforms. Both types of eccentricities result in large torque ripple and unbalanced magnetic forces.

IEEE TRANSACTIONS ON ENERGY CONVERSION (2022)

Article Engineering, Mechanical

A novel hybrid approach for damage identification of wind turbine bearing under variable speed condition

Xiaolong Wang et al.

Summary: The study developed a novel hybrid approach for wind turbine bearing damage identification, which showed better performance compared to other contrastive methods in terms of characteristic extraction ability and damage identification precision through analysis of experimental signals and engineering case studies.

MECHANISM AND MACHINE THEORY (2022)

Article Automation & Control Systems

Lateral and Torsional Vibration Monitoring of Multistack Rotor Induction Motors

Mohsen Zafarani et al.

Summary: In this article, the lateral and torsional vibrations in multistack rotor induction motors are modeled in the same framework to analyze the precursors in the current waveform. A lumped mass-spring model is used to calculate natural frequencies and torsional-mode shapes of the mechanical system, while winding function theory is employed to mimic the effects of lateral vibrations on motor inductances. Experimental results are presented and compared with analytical results to validate the modeling approach.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2021)

Article Automation & Control Systems

A Simplified Dynamical Model of Mixed Eccentricity Fault in a Three-Phase Induction Motor

Ranjan Sasti Charan Pal et al.

Summary: This article explores the effects of eccentricity related faults on a three-phase induction motor and proposes a simplified calculation method. By dividing the rotor periphery into three phases and considering the rotor bars and saturation effects, a closed-form expression for inductances has been derived.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2021)

Article Automation & Control Systems

A New External Search Coil Based Method to Detect Detailed Static Air-Gap Eccentricity Position in Nonsalient Pole Synchronous Generators

Yu-Ling He et al.

Summary: This research introduces a new method for detecting the air-gap eccentricity position of synchronous generators, which avoids the need for invasive sensors by using exterior search coils. Validation through numerical calculation and experiments shows the method's effectiveness, with potential for reducing error by increasing the number of coils.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2021)

Article Energy & Fuels

Impact of Stator Interturn Short Circuit Position on End Winding Vibration in Synchronous Generators

Yu-Ling He et al.

Summary: This article provides a comprehensive analysis on the end winding vibration characteristics in synchronous generators caused by different stator inter-turn short circuit (SISC) positions. The study reveals that SISC can significantly increase the electromagnetic force and amplify radial vibrations, especially at frequencies of 100 Hz, 200 Hz and 300 Hz. It also shows that the closer the short circuit position is to the minimum air-gap point, the more severe the end winding vibration becomes.

IEEE TRANSACTIONS ON ENERGY CONVERSION (2021)

Article Engineering, Electrical & Electronic

Rotor UMP characteristics and vibration properties in synchronous generator due to 3D static air-gap eccentricity faults

Yu-Ling He et al.

IET ELECTRIC POWER APPLICATIONS (2020)

Proceedings Paper Computer Science, Artificial Intelligence

Research on Stator-Core Temperature Characteristics under Static Air-Gap Eccentricity in Turbo-generator

Wenqiang Tao et al.

PROCEEDINGS OF 2020 IEEE INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND INFORMATION SYSTEMS (ICAIIS) (2020)

Article Automation & Control Systems

Electromagnetic Losses in Synchronous Machines During Active Compensation of Unbalanced Magnetic Pull

J. Jose Perez-Loya et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2019)

Article Automation & Control Systems

Unified Modeling Technique for Axially Uniform and Nonuniform Eccentricity Faults in Three-Phase Squirrel Cage Induction Motors

Mansour Ojaghi et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2018)

Article Energy & Fuels

Unbalanced Magnetic Force Analysis in Eccentric Surface Permanent-Magnet Motors Using an Improved Conformal Mapping Method

Farhad Rezaee-Alam et al.

IEEE TRANSACTIONS ON ENERGY CONVERSION (2017)

Article Engineering, Electrical & Electronic

United Electromagnetic Characteristics and Online Monitoring Method of Static Air-gap Eccentricity of Turbo-Generator

Gui-Ji Tang et al.

JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY (2016)

Article Automation & Control Systems

Fault-Tolerant Control of Brushless DC Motors Under Static Rotor Eccentricity

Mohammad Shakouhi et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2015)

Article Automation & Control Systems

An Online Method for Static Eccentricity Fault Detection in Axial Flux Machines

Seyyed Mehdi Mirimani et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2015)

Article Engineering, Multidisciplinary

Detection of Static Eccentricities in Axial-Flux Permanent-Magnet Machines With Concentrated Windings Using Vibration Analysis

Oladapo O. Ogidi et al.

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS (2015)

Article Engineering, Mechanical

Investigation on stator vibration characteristics under air-gap eccentricity and rotor short circuit composite faults

Gui-Ji Tang et al.

JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING (2014)

Article Engineering, Electrical & Electronic

Efficient Iterative Integral Technique for Computation of Fields in Electric Machines with Rotor Eccentricity

Ioan R. Ciric et al.

IEEE TRANSACTIONS ON MAGNETICS (2012)

Article Engineering, Electrical & Electronic

Characterization and Experimental Verification of the Axial Unbalanced Magnetic Force in Brushless DC Motors

J. Y. Kim et al.

IEEE TRANSACTIONS ON MAGNETICS (2012)

Article Automation & Control Systems

Harmonic Signatures of Static Eccentricities in the Stator Voltages and in the Rotor Current of No-Load Salient-Pole Synchronous Generators

Claudio Bruzzese et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2011)

Article Automation & Control Systems

Detection of Eccentricity Faults in Induction Machines Based on Nameplate Parameters

Subhasis Nandi et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2011)

Article Engineering, Electrical & Electronic

Particular Electromagnetic Field Computation for Permanent Magnet Generator Wind Turbine Analysis

C. Patsios et al.

IEEE TRANSACTIONS ON MAGNETICS (2010)

Article Engineering, Electrical & Electronic

Computation of additional losses due to rotor eccentricity in electrical machines

A. Belahcen et al.

IET ELECTRIC POWER APPLICATIONS (2010)

Article Automation & Control Systems

Static-, Dynamic-, and Mixed-Eccentricity Fault Diagnoses in Permanent-Magnet Synchronous Motors

Bashir Mahdi Ebrahimi et al.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2009)