Single-Phase VSC Based SSSC for Subsynchronous Resonance Damping

In this paper, a novel control strategy for subsynchronous resonance (SSR) mitigation using a static synchronous series compensator (SSSC) will be presented. The SSSC is constituted by three single-phase voltage source converters. SSR mitigation is obtained by increasing the network damping only at...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2008-07, Vol.23 (3), p.1544-1552
Main Authors: Bongiorno, M., Svensson, J., Angquist, L.
Format: Article
Language:English
Subjects:
Amplification
Applied sciences
Benchmarking
compensator (SSSC)
Converters
Convertors
Damping
Damping controller
Disturbances. Regulation. Protection
Electric potential
Electrical engineering. Electrical power engineering
Electrical machines
Electrical power engineering
Exact sciences and technology
Frequency
Induction generators
Networks
oscillation
Power conversion
Power generation
Power networks and lines
Regulation and control
Resonance
series compensation
Shafts
Special rotating machines
static synchronous series
static synchronous series compensator (SSSC)
Strategy
subsynchronous resonance (SSR)
Synchronous
torsional
torsional oscillation
Turbines
Voltage
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Summary:In this paper, a novel control strategy for subsynchronous resonance (SSR) mitigation using a static synchronous series compensator (SSSC) will be presented. The SSSC is constituted by three single-phase voltage source converters. SSR mitigation is obtained by increasing the network damping only at those frequencies that are critical for the turbine-generator shaft. This is achieved by controlling the subsynchronous component of the grid current to zero. Using the IEEE First benchmark model, the effectiveness of the proposed control algorithm when mitigating SSR due to torsional interaction and torque amplification effect will be shown.
ISSN:0885-8977
1937-4208
1937-4208
DOI:10.1109/TPWRD.2007.916231