✦ LIBER ✦
Suppression of torsional oscillations using thyristor-controlled conductance in parallel to series-capacitor segment
✍ Scribed by L. Wang
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 709 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1430-144X
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✦ Synopsis
This paper presents the analyzed results of a study on the application of thyristor-conrrolled conductance in parallel to one series-capacitor segment for suppressing subsynchronous resonance (SSR) that occurs in a seriescompensated power system. The IEEE Second Benchmark Model, system-], which has one turbine-generatorset, is taken as a standard model for this study. In order to stabilize all SSR modes in the studied system, a unified approach based on modal control theory is proposed to design a damping controller which is a dynamic output feedback compensator using shafi speed deviation of the studied generator as a feedback signal. To demonstrate the effectiveness of the proposed control scheme, frequency-domain approach based on eigenvalue analyses and time-domain approach based on non-linear model simulations are pe$ormed. The simulated results
show that the proposed SSR damping scheme can effectively suppress torsional oscillations of the studied system.