GG-Pseudo-Band Method for the Design of Multivariable Control Systems

Abstract

The design method proposed here is a frequency-domain method and uses acertain class of generalized Gershgor in bands mapped on the gain-phase plane, which are referred to as GG-pseudo-bands. Its main advantages are that the GG-pseudo-bands have a same width for all loops which is in variant under the changes of the diagonal compensator and the unit systems, that no diagonal dominance is required at high frequencies, and that a quantitative guide line for pseudo diagonalization is given based on the interaction index which is a satisfactory scalor measure of the cross intreaction