A　novel　nonlinear　robust　controller　based　on　the　wide-area　measurement　system　(WAMS)　is　proposed　using　the　inverse　system　algorithm　and　linear　matrix　inequality　technique.　The　controller　not　only　takes　into　account　time　delays　introduced　by　remote　signals　transmission　in　WAMS,　but　also　eliminates　the　effect　of　wide-area　information＇s　incompleteness　when　not　all　generators　are　equipped　with　the　phase　measurement　unit　(PMU)　on　power　system.　Digital　simulation　Studies　with　respect　to　a　four-machine　system　are　conducted　for　various　time　delays　of　remote　incomplete　measured　information.　The　results　demonstrate　that　the　nonlinear　robust　integrated　controller　(NRIC)　has　a　significant　potential　in　improving　the　dynamic　performance　and　transient　stability　of　power　system.　Copyright　(C)　2008　John　Wiley　&　Sons,　Ltd.