Analysis of multimode oscillations caused by subsynchronous resonance on generator shaft
- Title
- Analysis of multimode oscillations caused by subsynchronous resonance on generator shaft
- Creator
- Manikandan P.; Khan F.A.
- Description
- Series capacitors are installed in high voltage alternating current transmission lines to counteract the inductive reactance of the line. The resonance caused by series capacitors between electric system and mechanical system at frequencies less than the synchronous speed, leads to torsional oscillations. Undamped oscillations ma y cause a severe fatigue in the turbine generator shaft system. Rotating component undergoes various modes of oscillations when it is subjected to resonance. Rotor oscillate in different modes such as swing mode, super synchronous mode, electromechanical mode and torsional mode. Rotor dynamics of rotating structure depends on several factors like Coriolis Effect, moment of inertia and stiffness coefficient. Modal analysis using finite element method gives the natural frequency and mode shapes of any rotating structures. In this paper, a two mass rotating system which is analogous to turbine generator is subjected to resonance by adding series capacitors and its dynamic behavior is studied using finite element method. 2018 Lavoisier.
- Source
- European Journal of Electrical Engineering, Vol-20, No. 4, pp. 455-468.
- Date
- 2018-01-01
- Publisher
- Lavoisier
- Subject
- Finite element method; Modal analysis; Subsynchronous resonance; Turbine-generator
- Coverage
- Manikandan P., Department of EEE, Christ, Deemed to be University, Bangalore, Karnataka, India; Khan F.A., Department of EEE, Ghousia College of Engineering, Ramanagaram; Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
- Rights
- Restricted Access
- Relation
- ISSN: 21033641
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Manikandan P.; Khan F.A., “Analysis of multimode oscillations caused by subsynchronous resonance on generator shaft,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/16929.