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

fYear

2010

Firstpage

1

Lastpage

8

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology (POWERCON), 2010 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-5938-4

Type

conf

DOI

10.1109/POWERCON.2010.5666605

Filename

5666605