Title :
Robust Digital Automatic Reactive Power Regulator for Hydro Power Plants
Author :
Robert, G. ; Planque, JL
Author_Institution :
EDF Hydro Eng. Centre, Le Bourget du Lac
Abstract :
In this paper, a modelling based on a simplified state-space representation of a synchronous generator has been developed for tuning automatic reactive power regulators (AQR) which equip some French hydro power plants. These digital PI controllers participate to secondary voltage control with some control performance criteria updated lastly by the transmission system operator. New AQR´s parameters are calculated from a time-discrete transfer function approach which takes into account modelling uncertainties with robustness margins. The validity of the tuning was verified by comparing Matlab simulations with measurements carried out on a 110 MVA hydro unit.
Keywords :
PI control; hydroelectric power stations; reactive power control; synchronous generators; transfer functions; voltage control; automatic reactive power regulators; digital PI controller; hydro power plants; secondary voltage control; synchronous generator; time-discrete transfer function; Control systems; Digital control; Mathematical model; Power generation; Power system modeling; Reactive power; Regulators; Robustness; Synchronous generators; Voltage control; Hydro; PI controller; reactive power; secondary voltage control; synchronous generator;
Conference_Titel :
Clean Electrical Power, 2007. ICCEP '07. International Conference on
Conference_Location :
Capri
Print_ISBN :
1-4244-0632-3
Electronic_ISBN :
1-4244-0632-3
DOI :
10.1109/ICCEP.2007.384207
