Abstract
This paper proposes a unified approach based on modal control theory to design damping controllers of a thyristor-controlled series capacitor (TCSC) module for stabilizing the inherent common-mode torsional interactions occurred in a series-capacitor compensated power system. The studied power system includes two nonidentical turbine-generator sets connected to an infinite bus through a common series-capacitor compensated transmission line. The proposed TCSC module is properly connected in parallel with a part of the series-capacitor bank of the compensated transmission line. The damping controllers of the TCSC module employ the speed deviations of both turbine-generator sets as input signals to stabilize unstable torsional modes of the studied system by increasing the damping of these modes. Both frequency-domain approach based on eigenvalue analysis and time-domain scheme based on nonlinear-model simulations under different disturbance conditions are systematically performed. It can be concluded from the simulated results that the proposed TCSC module joined with the damping controllers designed by using modal control theory can effectively stabilize the common-mode torsional oscillations of the studied series-capacitor compensated system.
| Original language | English |
|---|---|
| Title of host publication | 2018 IEEE Industry Applications Society Annual Meeting, IAS 2018 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781538645369 |
| DOIs | |
| Publication status | Published - 26 Nov 2018 |
| Event | 2018 IEEE Industry Applications Society Annual Meeting, IAS 2018 - Portland, United States Duration: 23 Sep 2018 → 27 Sep 2018 |
Conference
| Conference | 2018 IEEE Industry Applications Society Annual Meeting, IAS 2018 |
|---|---|
| Country | United States |
| City | Portland |
| Period | 23.9.18 → 27.9.18 |
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Keywords
- Damping controller
- Index 7enm-Common-mode torsional oscillations
- Modal control theory
- Stability
- Subsynchronous resonance
- Thyristor-controlled series-capacitor module
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
Cite this
Modal control design of damping controllers for thyristor-controlled series-capacitor module to stabilize common-mode torsional oscillations of a series-capacitor compensated power system. / Wang, Li; Mokhlis, Hazlie; Liang, Hong Rong; Prokhorov, Anton V.; Huat, Chua Kein.
2018 IEEE Industry Applications Society Annual Meeting, IAS 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8544580.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Modal control design of damping controllers for thyristor-controlled series-capacitor module to stabilize common-mode torsional oscillations of a series-capacitor compensated power system
AU - Wang, Li
AU - Mokhlis, Hazlie
AU - Liang, Hong Rong
AU - Prokhorov, Anton V.
AU - Huat, Chua Kein
PY - 2018/11/26
Y1 - 2018/11/26
N2 - This paper proposes a unified approach based on modal control theory to design damping controllers of a thyristor-controlled series capacitor (TCSC) module for stabilizing the inherent common-mode torsional interactions occurred in a series-capacitor compensated power system. The studied power system includes two nonidentical turbine-generator sets connected to an infinite bus through a common series-capacitor compensated transmission line. The proposed TCSC module is properly connected in parallel with a part of the series-capacitor bank of the compensated transmission line. The damping controllers of the TCSC module employ the speed deviations of both turbine-generator sets as input signals to stabilize unstable torsional modes of the studied system by increasing the damping of these modes. Both frequency-domain approach based on eigenvalue analysis and time-domain scheme based on nonlinear-model simulations under different disturbance conditions are systematically performed. It can be concluded from the simulated results that the proposed TCSC module joined with the damping controllers designed by using modal control theory can effectively stabilize the common-mode torsional oscillations of the studied series-capacitor compensated system.
AB - This paper proposes a unified approach based on modal control theory to design damping controllers of a thyristor-controlled series capacitor (TCSC) module for stabilizing the inherent common-mode torsional interactions occurred in a series-capacitor compensated power system. The studied power system includes two nonidentical turbine-generator sets connected to an infinite bus through a common series-capacitor compensated transmission line. The proposed TCSC module is properly connected in parallel with a part of the series-capacitor bank of the compensated transmission line. The damping controllers of the TCSC module employ the speed deviations of both turbine-generator sets as input signals to stabilize unstable torsional modes of the studied system by increasing the damping of these modes. Both frequency-domain approach based on eigenvalue analysis and time-domain scheme based on nonlinear-model simulations under different disturbance conditions are systematically performed. It can be concluded from the simulated results that the proposed TCSC module joined with the damping controllers designed by using modal control theory can effectively stabilize the common-mode torsional oscillations of the studied series-capacitor compensated system.
KW - Damping controller
KW - Index 7enm-Common-mode torsional oscillations
KW - Modal control theory
KW - Stability
KW - Subsynchronous resonance
KW - Thyristor-controlled series-capacitor module
UR - http://www.scopus.com/inward/record.url?scp=85059948930&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059948930&partnerID=8YFLogxK
U2 - 10.1109/IAS.2018.8544580
DO - 10.1109/IAS.2018.8544580
M3 - Conference contribution
AN - SCOPUS:85059948930
BT - 2018 IEEE Industry Applications Society Annual Meeting, IAS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
ER -