Gündeş, A. N.Özbay, HitayÖzgüler, A. Bülent2016-02-082016-02-082006-071474-6670http://hdl.handle.net/11693/27140Conference name: 6th IFAC Workshop on Time Delay Systems, 2006Date of Conference: 10-12 July, 2006Conditions are presented for closed-loop stabilizability of linear time-invariant (LTI) multi-input, multi-output (MIMO) plants with I/O delays (time delays in the input and/or output channels) using PID (Proportional + Integral + Derivative) controllers. We show that systems with at most two unstable poles can be stabilized by PID controllers provided a small gain condition is satisfied. For systems with only one unstable pole, this condition is equivalent to having sufficiently small delay-unstable pole product. Our method of synthesis of such controllers identify some free parameters that can be used to satisfy further design criteria than stability. Copyright © 2006 IFAC.EnglishMIMO systemsPID controlTime delayUnstable systemsClosed-loopDesign criterionFree parametersLinear time-invariantMIMO plantsMulti-outputMultiinputOutput channelsPID controllersSmall-gain conditionStabilizabilityUnstable systemControllersElectric control equipmentPolesStability criteriaThree term control systemsTwo term control systemsProportional control systemsConference Paper10.3182/20060710-3-IT-4901.00042