Karagül, E.Özbay, Hitay2016-02-082016-02-082013http://hdl.handle.net/11693/27989Date of Conference: February 4-6, 2013Conference name: IFAC Joint conference SSSC, FDA, TDS 11TH Workshop on Time-Delay Systems TDS’13This paper deals with the H∞ optimal controller design for a magnetic suspension system model derived in Knospe and Zhu [2011], with added input/output delay. The plant is a fractional order system with time delay i.e., the transfer function of the plant involves infinite dimensional terms including a rational function of √/s and e-hs, where h > 0 represents the delay. The H∞ optimal controller is designed by using the recent formulation given in Ozbay [2012] for the mixed sensitivity minimization problem for unstable infinite dimensional plants with low order weights. The effect of time delay on the achievable performance level is illustrated. © 2013 IFAC.EnglishAchievable performanceController designsEffect of timeFractional-order systemsInfinite dimensionalMagnetic suspension systemMixed sensitivityOptimal controllerDelay control systemsOptimizationTime delaySuspensions (components)Conference Paper10.3182/20130204-3-FR-4031.00055