Özgüler, A. B.Gündeş, A. N.2016-02-082016-02-0820020013-5194http://hdl.handle.net/11693/24709In classical controller design, poles fat to the left of dominant poles are sometimes ignored. Similarly, in some proportional-integral compensation techniques, the controller zero is placed close to the origin and design proceeds after cancelling this zero with a pole at the origin. A rigorous basis for these methods is provided, it being shown that there is a duality between the two.EnglishApproximation theoryHeuristic methodsTheorem provingTransfer functionsTwo term control systemsCompensator designClosed loop control systemsArticle10.1049/el:20020327