A Novel On-line Intelligent Shaft-Torsional Oscillation Monitor for Large Induction Motors and Synchronous Generators

Author

Sharaf, A.M. ; Yin, Bo ; Hassan, M.

Author_Institution

Electr. & Comput. Eng. Dept., New Brunswick Univ., Fredericton, NB

fYear

2006

fDate

38838

Firstpage

819

Lastpage

822

Abstract

The paper presents a new method to detect subsynchronous resonance (SSR) shaft torsional oscillation for large induction motors and synchronous generators. This is achieved by using a novel on-line intelligent shaft monitor (ISM). The ISM device utilizes stator current and frequency based transformations. The proposed detection scheme is based on the stator current-excursion patterns and relevant phase-portraits. It can also be used to damp any SSR oscillation mode using a dynamic filter and static compensator

Keywords

damping; induction motors; oscillations; subsynchronous resonance; synchronous generators; SSR detection; SSR oscillation damping; dynamic filter; induction motors; intelligent shaft-torsional oscillation monitor; on-line ISM; static compensator; stator current-excursion patterns; subsynchronous resonance; synchronous generators; Filters; Frequency; Induction motors; Monitoring; Phase detection; Resonance; STATCOM; Shafts; Stators; Synchronous generators; Excursion Vector; ISM; SSR Detection & Compensator Mitigation; Torsional Oscillation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on

Conference_Location

Ottawa, Ont.

Print_ISBN

1-4244-0038-4

Electronic_ISBN

1-4244-0038-4

Type

conf

DOI

10.1109/CCECE.2006.277309

Filename

4054779