Title :
Study of damping power system multi-mode oscillations by using a single FACTS device
Author :
Hu, XiaoBo ; Yang, Liming ; Chen, Zhong ; Du, W. ; Wang, H.F. ; Dunn, Rod ; Tang, G.Q.
Author_Institution :
Southeast Univ., Nanjing
Abstract :
This paper investigates the feasibility of damping multi-mode oscillations by a single FACTS device with multiple damping controllers in a multi-machine power system. The nonlinear dynamic model and the linearized Phillips- Heffron model of a power system installed with a MUPFC (Multi-terminal UPFC) are derived. While MUPFC is a type of FACTS device as an extended UPFC (Unified Power Flow Controller). Based on modal analysis, controllability indices are used to decide respective efficient control loops for weakly damped modes. Simulation result indicates that the multiple auxiliary damping controllers of a single FACTS determined by the proposed method can successfully suppress the multi-mode oscillations in the power system.
Keywords :
flexible AC transmission systems; load flow control; modal analysis; nonlinear dynamical systems; oscillations; power system control; power system faults; power system simulation; FACTS device; linearized Phillips-Heffron model; modal analysis; multimachine power system; multimode oscillation; multiple auxiliary damping controllers; multiterminal UPFC; nonlinear dynamic model; power system damping; single facts device; unified power flow controller; Control systems; Damping; Load flow; Modal analysis; Nonlinear dynamical systems; Power system analysis computing; Power system dynamics; Power system modeling; Power system simulation; Power systems; FACTS; MUPFC; damping; multi-mode oscillations;
Conference_Titel :
Universities Power Engineering Conference, 2007. UPEC 2007. 42nd International
Conference_Location :
Brighton
Print_ISBN :
978-1-905593-36-1
Electronic_ISBN :
978-1-905593-34-7
DOI :
10.1109/UPEC.2007.4468937
