Title :
Robust coordination damping control of multi-model system with FACTS devices via sequential approach
Author :
Li, C. ; Deng, J. ; Zhang, X.-P.
Author_Institution :
Sch. of EESE, Univ. of Birmingham, Birmingham, UK
Abstract :
In this paper, multiple flexible AC transmission systems (FACTS) supplementary damping controllers are designed for the enhancement of system small-signal stability under different system operating points. A static var compensator (SVC) and a thyristor-controlled series compensator (TCSC) damping controller are designed sequentially with minimized decoupling effort. This approach is carried out with a bilinear matrix inequality (BMI)-based multi-objective multi-model method. In each step, a single input and single output feedback controller is designed to increase system damping ratios of several inter-area oscillatory modes under nominal and off-nominal operating points. Regional pole placement and control effort optimization are set as the control objectives. Controller designs are implemented on a five-area 68-bus system and the test system is verified by non-linear simulations in real-time digital simulator (RTDS).
Keywords :
bilinear systems; damping; flexible AC transmission systems; power system control; static VAr compensators; BMI-based multiobjective multimodel method; FACTS devices; RTDS; SVC; TCSC; bilinear matrix inequality; coordination damping control; flexible AC transmission systems; interarea oscillatory modes; multimodel system; real-time digital simulator; single input feedback controller; single output feedback controller; static var compensator; supplementary damping controllers; thyristor-controlled series compensator; BMI; Power system oscillation; Robust damping control; Sequential Design; multi-model system;
Conference_Titel :
AC and DC Power Transmission, 11th IET International Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-84919-982-7
DOI :
10.1049/cp.2015.0026
