Title :
Analysis of voltage stability enhancement via unified power flow controller
Author :
Chen, H. ; Wang, Y. ; Zhou, R.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Abstract :
This paper discusses the control of the unified power flow controller (UPFC) to improve power system voltage stability. A dynamical UPFC model is presented. The impact of the UPC model on voltage stability is clarified through bifurcation analysis. Robust techniques are employed for the series and shunt branches control and the DC capacitor voltage control. Only local measurements are required for designing the controllers. The effectiveness of the proposed UPFC control on voltage stability is examined on a three-machine power system. Bifurcation analysis indicates that the feasibility region can be greatly extended. Therefore the proposed controller is effective in voltage stability enhancement
Keywords :
bifurcation; load flow control; power system control; power system dynamic stability; voltage control; DC capacitor voltage control; bifurcation analysis; controllers design; power system voltage stability; robust techniques; series branches control; shunt branches control; three-machine power system; unified power flow controller; voltage stability enhancement; Control systems; Load flow; Power system analysis computing; Power system control; Power system measurements; Power system modeling; Power system stability; Power systems; Stability analysis; Voltage control;
Conference_Titel :
Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-6338-8
DOI :
10.1109/ICPST.2000.900091
