Study of generator shaft behaviour during subsynchronous resonance using finite element method

Title

Study of generator shaft behaviour during subsynchronous resonance using finite element method

Creator

Manikandan P.; Khan F.A.

Description

Scientific research in electric power stations includes various online monitoring and control of equipments. Turbine and generator plays a key role in generating power. Frequency response analysis of the shaft which connects turbine and generator is used to detect the steady state response. It will enable the user to understand and design the system in such a way that it can withstand resonance, fatigue and other vibrations. Subsynchronous resonance which arises during line compensation by series capacitors increases oscillations in the turbine generator shaft system. The oscillations developed at low frequency causes physical damage to the shaft. There are several real time monitoring of the rotor shaft and turbine shaft misalignment by using laser technologies. The aim of this research paper is to use frequency response and modal analysis technique to detect the stress in the shaft and improve the design of it. A viscous damper is designed in the 3D model at the point of highly stressed area to control the resonance effect caused by series capacitors. 2020, Levrotto and Bella. All rights reserved.

Source

International Journal of Mechanics and Control, Vol-21, No. 1, pp. 121-126.

Date

2020-01-01

Publisher

Levrotto and Bella

Subject

Damper; Finite element method; Modal analysis; Shaft; Subsynchronous resonance

Coverage

Manikandan P., Department of EEE, Christ (Deemed to be University), Bangalore, India; Khan F.A., Department of EEE, Ghousia College of engineering, Ramanagaram, India

Rights

Restricted Access

Relation

ISSN: 15908844

Format

Online

Language

English

Type

Article

Identifier

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85085751670&partnerID=40&md5=ad62cd7d607e5a53dba5e025d9cae422