Robust stabilizer synthesis for interval plants using H-infinity methods

This paper deals with the synthesis of robustly stabilizing compensators for interval plants, i.e., plants whose parameters vary within prescribed ranges. Well-known H^∞ methods are used to establish robust stabilizability conditions for a family of plants and also to synthesise controllers that would stabilize the whole family. Though conservative, these methods give a very simple way to come up with a family of robust stabilizers for an interval plant