CHEE 434 Final: CHEE 434 final_2010
9 Jan 2019
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Instructions: you have 2 hours to complete this examination, please write your student number instead of your name on all answer booklets and sheets submitted, please state all assumptions made, calculators are permitted, this is an open-book examination. Textbooks, course notes, assignment and midterm solu- tions are allowed: please answer all questions, there are three (3) pages in the question booklet, good luck! A continuous-time plant has a transfer function given by: G0(s) = e 0. 1s(s 1) (s + 7)(s + 3) Go(s) = s + 3 (s 2)(s + 1) 25 marks (2) (a) using pole placement, synthesize a controller with integral action such that the characteristic polynomial of the closed-loop process is given by. Acl(s) = (s + 1)(s + 3)r where r is a positive integer chosen as part of the controller synthesis. (b) assume that the actual process is given by:
