The University of Trinidad and Tobago COURSE TITLE:
Process Control Systems
COURSE CODE:
PCTS220B
LEVEL: Level 2 CREDIT POINTS: 3 Parent Program: Bachelor of Applied Science in Utilities Engineering Date validated: August 2008
Date modified:
TOTAL STUDENT WORKLOAD : (75 hours) Typically the weekly hours commitment to the course will include 4hrs of formal delivery with students expected to manage directed learning and independent study in support of the Unit. The normal weekly workload will be: Lecture: Laboratory/Practical: Directed and independent study
2 hr 2 hrs 1 hrs
PREREQUISITES MATH210B. UNIT DESCRIPTION This course presents the basics of linear control systems, controllability and observability with application to mechanical, electrical and process systems. The topics presented in this course include modeling of process systems, time and frequency analysis of systems, stability, state-space representation, stability, PD, and PID control, multivariable control, state estimation and linear matrix inequalities in control, multi-objective control, design, tuning and optimization. LEARNING OUTCOMES Knowledge and Understanding 1. Understands the fundamentals of process control systems Cognitive skills 2. Applies process control theory to practical systems Subject Specific Practical and Professional skills 3. Models process control systems using suitable software. Transferable Skills 4. Applies problem-solving methodologies
AREAS OF STUDY Chapter 1. Introduction to control system design (3 hours) Notion of dynamical systems; Examples of control systems; Closed-Loop control versus open-loop control. Chapter 2. Modeling of dynamical systems (6 hours) Modeling concepts; Electrical systems; Mechanical systems; DC motor; Liquid-level systems; Hydraulic systems; Thermal systems; Practical process systems. Chaptre 3. Time and frequency response analysis (6 hours) Transient and steady-state response; First-order systems; Second-order systems; Higher-order systems; Sensitivity analysis; Laplace transforms; Inverse Laplace transform; Notion of the transfer function; Simplification of block diagrams. Chapter 4. Stability of linear systems (6 hours) Routh-Hurwitz method; Root lucas method; Nyquist diagram; Nyquist stability criterion; Relative stability; Phase margin and gain margin. Chapter 5. Bode and Nichols diagrams (3 hours) Plotting Bode diagrams; Lead Compensation; Lag Compensation; Lag-Lead compensation control systems design by Bode plot; Stability analysis using Nichols diagram. Chapter 6. State space representation of systems (6 hours) Canonical forms; Controllability and observability;
Stability analysis in state space; Control design. Optimal and multi-objective control design (6 hours) Principles of optimal control; Algebraic Riccati equation; Min-max control; Linear matrix inequalities in control; Multi-objective control criterions; Examples. Project 1. Modelling and control of a process system Reading the instrumentation schemes; Understanding the ISA S5.1 and S5.3; Translating the instrumentation scheme to block diagrams; Analyse the different ways how to control the system; Implementation of the model on Simulink; Build the controller and give the simulation results. TEACHING AND LEARNING STRATEGY The Unit will use lectures and laboratory/workshop sessions with in-class assessments based around practical tasks in a workstation environment. ASSESSMENT Assessment Element 1 weighting %: assessment type: duration: special facilities:
25% assignments/quizzes in-course none
Assessment Element 2 weighting %: assessment type: duration: special facilities:
15% mid-Term exam/project/lab in-course Open-book exam
Assessment Element 3 weighting %: assessment type: duration: special facilities:
60% final examination 180 mins examination conditions
ASSESSMENT STRATEGY To assist learning, the assessment process is designed to provide the student with timely and regular formative feedback. Lectures will be used to provide the students with fundamental concepts which will be applied to practical process control systems. The laboratory and simulation sessions will practice the design concept and utilizing problem solving and analysis. Attendance at practical
sessions is a pre-requisite for the validation of any work assessed through laboratory and project submissions. Students must provide evidence of research, design development and implementation. The main assessment elements for this course are: Design, construct, test/troubleshoot process control systems and examinations to test basic understanding and knowledge. Aggregation and reassessment rules The three assessment elements will be aggregated to form a single overall mark. To achieve an overall pass in the Unit students must pass the aggregated in-course assessments and the final examination separately. INDICATIVE READING 1) Automatic Control Engineering by Francis H. Raven, Paperback: 640 pages, Publisher: McGraw-Hill Education (ISE Editions); Internat.2r.e. edition (1 Mar 1995), Language English, ISBN-10: 0071136398, ISBN-13: 9780071136396 2) Modern Control Systems by Richard C. Dorf and Robert H. Bishop, Paperback : 1056 pages, Publisher : Prentice Hall; Edition : 11 (23 August 2007), Language : English, ISBN-10: 0132270285, ISBN-13: 978-0132270281 3) Linear systems by Thomas Kailath, Paperback: 682 pages, Publisher: Prentice Hall (November 11, 1979), Language: English, ISBN-10: 0135369614, ISBN-13: 978-0135369616. 4) Process Dynamics, Modeling and control by: B.A. Ogunnaike, W.H. Ray, Oxford, 1994. 5) Nonlinear systems (3rd Edition) by Hassan K. Khalil, Hardcover: 750 pages, Publisher: Prentice Hall; 3 edition (December 28, 2001), Language: English, ISBN-10: 0130673897, ISBN-13: 978-0130673893.
