Title :
A method for designing digital multivariable industrial controller
Author :
Pan, Somnath ; Pal, Jayanta
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India
Abstract :
A new method is proposed for designing cascade rational controllers for linear discrete time multivariable industrial systems using output feedback. The method is based on the principle of approximate model-matching as opposed to exact model-matching design procedures. A newly defined set of parameters called the approximate generalised time moments (AGTM) are used in the design procedure. The AGTMs of the closed-loop system with the unknown controller parameters are matched with those of a target function that embodies the desired industrial specifications to be met. This results in a set of linear algebraic equations that are solved to obtain the controller parameters. Successful application of the method to design a controller for a two-shaft turbojet engine is illustrated
Keywords :
cascade control; closed loop systems; control system synthesis; digital control; discrete time systems; multivariable control systems; approximate generalised time moments; approximate model-matching; cascade rational controllers; closed-loop system; digital multivariable industrial controller; linear algebraic equations; linear discrete time systems; multivariable industrial systems; output feedback; two-shaft turbojet engine; Control systems; Design methodology; Digital control; Electrical equipment industry; Engines; Equations; Industrial control; Linear feedback control systems; Output feedback; Transient response;
Conference_Titel :
Industrial Automation and Control, 1995 (I A & C'95), IEEE/IAS International Conference on (Cat. No.95TH8005)
Conference_Location :
Hyderabad
Print_ISBN :
0-7803-2081-6
DOI :
10.1109/IACC.1995.465816
