Optimal Layout Method of Multiple Vibration Sensors Based on Motor Vibration Frequency Response

Zhou, Feng; Xu, Ping; Bai, Xingzhen; Wang, Hao; Bi, Huakun; Cui, Baochun

doi:10.1007/s42417-022-00603-y

Cited by 1 publication

(2 citation statements)

References 13 publications

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“…In Equation (2), Fd is the reverse MMF, nm is the number of short circuit turns, β′ is the initial position angle of the slot where the interturn short circuit occurs, αr is the angle between the two slots where the short circuit turns are in, and If is the excitation current.…”

Section: Impact Of Drisc On Mfdmentioning

confidence: 99%

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Analysis on Rotor Vibration Characteristics under Dynamic Rotor Interturn Short Circuit Fault in Synchronous Generators

He,

Jiang,

Sun

et al. 2023

Energies

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A dynamic rotor interturn short circuit fault may occur during synchronous generator operation. However, there is no method to analyze the generator’s characteristics under the dynamic rotor interturn short circuit fault and identify the fault. In order to solve this problem, a new dynamic rotor interturn short circuit fault analysis model is creatively proposed through mathematical derivation. Firstly, the rotor vibration characteristics and the mechanical response under magnetic pull excitation are theoretically analyzed. In addition, a finite element modeling method for the dynamic rotor interturn short circuit fault is proposed, and an experimental device is designed. The model of a synchronous generator under the dynamic rotor interturn short circuit fault is established to obtain the rotor’s unbalanced magnetic pulls and mechanical responses by finite element calculation. Finally, the rotor vibrations are tested on a CS-5 prototype generator. The validity of the model is verified by finite element calculation and an experiment. This paper provides theoretical support for the diagnosis of a synchronous generator’s dynamic rotor interturn short circuit fault.

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Section: Impact Of Drisc On Mfdmentioning

confidence: 99%

“…The rotor vibration of the synchronous generator directly affects the operational reliability of the power system. Moreover, the vibration signal of the rotor can reflect the state of the generator [2]. The research on the rotor vibration is of great significance to the safe and efficient operation of synchronous generators.…”

Section: Introductionmentioning

confidence: 99%