Title :
Constrained optimal control of VSC-HVDC for power system enhancement
Author :
Fuchs, A.N. ; Mariethoz, S. ; Larsson, M. ; Morari, M.
Author_Institution :
Autom. Control Lab., Swiss Fed. Inst. of Technol. (ETH Zurich), Zürich, Switzerland
Abstract :
This work deals with constrained optimal control of VSC-HVDC. It shows how to exploit the independent control of active and reactive power to enhance the stability of grid areas on each side of the HVDC. It focuses on electromechanical dynamics as they occur during faults. A hierarchical control structure is proposed where the outer loop sets the power references based on power system measurements in real time. The inner loops ensure fast and accurate tracking of these references using high dynamic performance controllers.
Keywords :
HVDC power convertors; optimal control; power system control; power system measurement; power system stability; reactive power control; VSC-HVDC; constrained optimal control; electromechanical dynamics; grid area stability; power system enhancement; power system measurements; reactive power; real time; voltage source converters; HVDC transmission; Mathematical model; Power system dynamics; Power system stability; Reactive power; Voltage control; Fast MPC; MPC; VSC-HVDC;
Conference_Titel :
Power System Technology (POWERCON), 2010 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-5938-4
DOI :
10.1109/POWERCON.2010.5666605
