Title :
Modeling and analysis of speed controls in hydro-turbines for frequency performance
Author :
Pico, H.V. ; McCalley, James
Author_Institution :
Dept. of Comput. & Electr. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
This paper presents a discussion of the principal control strategies for frequency control in hydro-turbines and their performance under nonlinearities. Practical considerations for the dynamic modeling of the control systems in hydro turbines are introduced. Actuator dynamics and their importance in the control loop are analyzed. A study is also performed on an exemplifying small hydro system to show how the frequency response in the system behaves with the addition of nonlinearities in its controls.
Keywords :
frequency control; hydraulic actuators; hydraulic turbines; velocity control; actuator dynamics; control loop; control strategies; control systems; dynamic modeling; frequency control; frequency performance; frequency response; hydro turbines; speed controls; Actuators; Automatic generation control; Frequency control; Power system dynamics; Power system stability; Servomotors; Valves;
Conference_Titel :
North American Power Symposium (NAPS), 2011
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4577-0417-8
Electronic_ISBN :
978-1-4577-0418-5
DOI :
10.1109/NAPS.2011.6024847
