Title :
Robust controller design for governing steam turbine power generators
Author :
Nademi, H. ; Tahami, F.
Author_Institution :
Damavand Combined Cycle Power Plant, Damavand Power Generation Manage. Co., Tehran, Iran
Abstract :
The turbine control system is one of the key control loops in the dynamic performance of steam power generation units. In this paper a multivariable PID controller is designed for the governing system of steam turbine power generators. The necessary and sufficient conditions for existence of a strong robust H¿ dynamic compensator are established in terms of linear matrix inequality (LMI) approach. This controller is designed in succeeding to the existing proportional controller in a power plant. To reach to this goal, the complete dynamic model of an actual turbine-generator including the governor, turbine and generator, are derived. Simulation results show that proposed controller has good tracking and disturbance rejection properties despite the variations in the system parameters.
Keywords :
H¿ control; compensation; control system synthesis; linear matrix inequalities; power system control; steam turbines; turbogenerators; actual turbine-generator; complete dynamic model; disturbance rejection properties; key control loops; linear matrix inequality; multivariable PID controller; power plant; proportional controller; robust controller design; steam power generation units; steam turbine power generators; strong robust H¿ dynamic compensator; turbine control system; Control systems; Linear matrix inequalities; Power generation; Power system modeling; Proportional control; Robust control; Robustness; Sufficient conditions; Three-term control; Turbines; Governor; power plant; robust control; steam turbine;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382935