The quadratic performance, infinite steps, set point model...

Details The quadratic performance, infinite steps, set point model... The quadratic performance, infinite steps, set point model...

G - Physics

05

B

G05B 11/01 (2006.01) G05B 13/02 (2006.01)

Patent

CA 2520341

Two linear quadratic tracking controllers and a minimal prototype controller are presented for the tracking control of a set point model of a discrete SISO control system. The minimal prototype controller is an unconstrained controller. Depending on the set point model, this controller might be desirable. But usually one would choose one of the two linear quadratic controllers which minimize the sum of squared errors between the output and the set point variables with a penalty on the input variable. The one degree of freedom (1-DOF) controller performs well but for nonminimum phase systems the two and a half degrees of freedom (2.5-DOF) is a stronger controller as it can suppress the inverse response of a nonminimum phase system.

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