Extended Closed Loop Output Error Structure

In this structure the plant B/A is controlled by an RST Controller . The closed loop output error is the difference between the output of the real closed loop system (controller + real plant) and the output of the closed loop predictor (controller + adjustable model plant).

 

u(t) : plant input

y(t): plant output

w(t): output disturbance (white noise filtered by C/A)

r(t): excitation signal

û(t): input of the adjustable plant model

ybar(t): output of the predictor

e(t): prediction error

H(q-1,t)=1+q-1H'(q-1,t) is a polynomial whose parameters are estimated in the algorithm in order to whiten the prediction error. It models the effect of noise on the closed loop output.

In this structure an ARMAX model for the plant is considered.

For this structure only one algorithm is considered: XCLOE .

See: Closed loop identification module .

Help topics.

(file xclstruc.htm)