Title :
Application of Control Lyapunov Functions to Voltage Source Converters-based High Voltage Direct Current for Improving Transient Stability
Author :
Latorre, H.F. ; Ghandhari, M. ; Söder, L.
Author_Institution :
Dept. of Electr. Power Syst., R. Inst. of Technol., Stockholm
Abstract :
VSC-HVDC has become an important member in the field of power electronics with application in transmission systems thanks to its capability of fast response operation and independent control of active and reactive power. An appropriate control strategy and a correct selection of input signals allow the VSC-HVDC to enhance transient stability, damp power oscillations and provide voltage support in power systems in a significant way. This paper presents, as part of a development of a multichoice control for a VSC-HVDC, the derivation of a control strategy for transient stability, based on control Lyapunov function. The VSC-HVDC is represented by a general model, referred to as injection model which represents the VSC-HVDC as an element in the power system that provides adequate interaction with other system elements.
Keywords :
HVDC power convertors; HVDC power transmission; Lyapunov methods; power system transient stability; reactive power; VSC-HVDC; control Lyapunov function; fast response operation; high voltage direct current; injection model; multichoice control; reactive power; transient stability; transmission systems; voltage source converters; Control systems; Converters; Lyapunov method; Power conversion; Power electronics; Power system modeling; Power system stability; Power system transients; Reactive power control; Voltage control; Control Lyapunov Functions; Transient Stability; VSC-HVdc;
Conference_Titel :
Power Tech, 2007 IEEE Lausanne
Conference_Location :
Lausanne
Print_ISBN :
978-1-4244-2189-3
Electronic_ISBN :
978-1-4244-2190-9
DOI :
10.1109/PCT.2007.4538324