Low-order H∞ controller design with an applicationin flexible servomechanisms

摘要

This paper considers a design problem involving a servomechanismsystem with a flexible axis which has a high-order nominal model usedfor controller design. The controller obtained by a standardH∞ algorithm is the same order as the generalizedplant. This paper investigates low-order H∞ controllerdesign in the chain-scattering matrix framework. The method usespositive-real matrices to construct a low-order controller generatorwhich is able to generate a set of low-order H∞controllers