Title :
Research of coordinated control system based on robust control
Author :
Xie, Xie ; Liu, Jizhen ; Zeng, Deliang ; Tan, Wen
Author_Institution :
Sch. of Control &Comput. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
It is proposed robust control algorithm for inaccurateness of coordinated control system model. In order to improve performance of robust controller, the dynamic compensation is used for balancing the difference of dynamic between boiler side and turbine side. A loop-shaping H¿ controller is designed for a boiler-turbine unit nonlinear model with adding dynamic compensation. In order to implement the complex H¿ controller, a multivariable controller with PID form can be got by reducing robust controller. Simulation show that the effect of robust controller can be approached by multivariable PID controller, and the controller has better robustness and dynamic is improved after dynamic compensation.
Keywords :
H¿ control; boilers; compensation; multivariable control systems; nonlinear control systems; robust control; steam turbines; three-term control; boiler side; boiler-turbine unit nonlinear model; complex H¿ controller; coordinated control system; dynamic compensation; loop-shaping H¿controller; multivariable PID controller; robust control algorithm; robust controller; turbine side; Boilers; Carbon capture and storage; Control system synthesis; Control systems; Fuels; Nonlinear control systems; Nonlinear dynamical systems; Power system modeling; Robust control; Three-term control; dynamic compensation; loop-shaping H∞ controller multivariable PID controller; nonlinear model of boiler-turbine unit;
Conference_Titel :
Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5585-0
Electronic_ISBN :
978-1-4244-5586-7
DOI :
10.1109/ICCAE.2010.5451791
