Title :
Multivariable identification for boiler-turbine control system of power unit
Author :
Wang Ya-gang ; Wang Xian-ping ; Zhang Xi ; Li Xiao-feng
Author_Institution :
Sch. of Opt.-Electr. & Comput. Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
This paper presents a new technique of closed-loop identification for boiler-turbine coordinated control system of power unit. On the basis of process input and output data in the control loops, the process frequency-response matrix is estimated with signal decomposition and frequency spectrum analysis, and then a transform function matrix is identified by least square method. The dynamic model is useful for adaptive coordinated control system to overcome the nonlinearity of boiler-turbine units. Simulation example is given to show both effectiveness and accuracy of the identification method for boiler-turbine units.
Keywords :
adaptive control; boilers; closed loop systems; least squares approximations; matrix algebra; multivariable control systems; signal processing; turbines; adaptive coordinated control system; boiler-turbine coordinated control system; boiler-turbine units nonlinearity; closed-loop identification; control loops; frequency spectrum analysis; least square method; multivariable identification; power unit; process frequency-response matrix; signal decomposition; transform function matrix; Control systems; Educational institutions; Electronic mail; Frequency control; Frequency estimation; Matrix decomposition; Process control; Closed-loop identification; boiler-turbine unit; coordinated control system; frequency response;
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an
