CHEE 434 Study Guide - Quiz Guide: Phase Margin, Kolmogorov Space, Long Term Ecological Research Network

• School: Queen's University
• Department: Chemical Engineering
• Course: CHEE 434
• Professor: All

Document Summary

Instructions: this is a 50 minutes 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 seven (7) pages in the question booklet, good luck! Figure 1: bode magnitude plot: identify the type of lter, compute its bandwidth. For each pair of process model and controller, assess the stability using the nyquist plots provided: system 1. G0(s) = (s 3) (s + 5)(s + 7) G0(s) = (s + 4) (s 1)(s + 3) , c(s) = (2s2 + 3s + 1) Figure 4: nyquist plot for system 2 showing plot around (-1,0). Figure 6: nyquist plot for system 3 showing plot around (-1,0). The following model and control transfer function pair yields a stable nominal closed-loop system.