The invention discloses an optimization control method and apparatus of a refining apparatus
coupling unit. The method comprises the following steps: obtaining a closed-loop dynamic feedback decoupling compensator D(s) paired based on a relative
gain matrix loop, decoupling a controlled object G(s), and converting the G(s) into a generalized object G(s)<^>; designing an inner-mold controller C(s) for the generalized object G(s)<^>; calculating a fuzzy input amount, a
process output and process model output deviation e(t) and a deviation change rate e(t)<.>; determining a
fuzzy rule, and obtaining a fuzzy relation between an inner-mold controller parameter and e(t) and e(t)<.>; correcting the value of a controller parameter
lambda i in an online mode through performing analyzing,
processing, table-querying and operation on the
fuzzy rule according to the following formula:
lambda i=
lambda i0+{Ei,ECi}lambda i, wherein lambda i0 is an initial
value set for the filter
time constant lambda i according to an identification result of an
object model parameter and operation experience, and {Ei,ECi} lambda i represents online correction on the lambda i after
fuzzy logic reasoning calculation. The method can realize full-flow
automatic control of a controlled
system and further inhibit interference better.