On Control of Static Synchronous Series Compensator for SSR Mitigation

Author

Bongiorno, Massimo ; Svensson, Jan ; Ängquist, Lennart

Author_Institution

Chalmers Univ. of Technol., Goteborg

Volume

23

Issue

2

fYear

2008

fDate

3/1/2008 12:00:00 AM

Firstpage

735

Lastpage

743

Abstract

This paper deals with the analysis and simulation of the static series compensator (SSSC) for subsynchronous resonance (SSR) mitigation. The purpose of the paper is to derive and analyze a novel control strategy for SSSC dedicated for SSR mitigation. Objective of the proposed controller is to increase the network damping only at those frequencies that are critical for the turbine-generator shaft. By using frequency scanning analysis, the effectiveness of the proposed method for mitigation of SSR due to torsional interaction effect is presented and compared with the existing control strategy. Finally, simulation results show the performance of the proposed method in mitigating SSR due to torque amplification effect.

Keywords

shafts; static VAr compensators; subsynchronous resonance; turbogenerators; SSR mitigation; SSSC control; frequency scanning analysis; network damping; static synchronous series compensator; subsynchronous resonance; torsional interaction effect; turbine-generator shaft; Capacitors; Damping; Frequency; Induction generators; Power system simulation; Power systems; Resonance; Thyristors; Torque; Turbines; Converters; current control; estimation; power systems; subsynchronous resonance (SSR);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2007.915178

Filename

4463847