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Description

Stephanopoulos, "Chemical process control ...", 1984

External link

Introduction

Introduction to course

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Introduction to Matlab®

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Feedback Stability

Open and closed loop & BIBO stability

Transfer Function forms & Matlab®

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Root Locus

Frequency response

Bode and Nyquist diagrams

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Nyquist stability criterion

Dead time

Padé Approximation

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Smith Predictor

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Inverse response systems

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Windup

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More complex feedback control structures

Cascade, Ratio, etc.

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FeedForward

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MPC

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Overview on Math Modeling

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Chapter 4;
Chapter 5  §5.1

Introduction to stability of non-linear systems

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Non-linear dynamic system taken as reference

Continuous Stirred Tank Reactor with Cooling Jacket

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Introduction to PPlane software

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Title
 

Source

Linear Physical Systems Analysis (Laplace, Root Locus, Frequency Response, etc.)

The Swarthmore College

University of Michigan Chemical Engineering Process Dynamics and Controls Open Textbook

ControlsWiki

Instrumentation and Control Module 7

US Department of Energy
Fundamentals Handbook

Practical process control e-textbook

ControlGuru

Feedback Systems: An Introduction for Scientists and Engineers

California Institute of Technology
Richard M. Murray's page

Welcome To Exploring Classical Control Systems

Bucknell University
E.J. Mastascusa 's page

Process Control and Instrumentation

National Programme on Technology Enhanced Learning (NPTEL) - Phase II
Prabirkumar Saha's page

Written Exam Date

Exam questions

Worked/
solved test

Keywords

2014-to-date Examination Texts

New 
TSPC_Exam_2023-06-15

The dynamic process Gp(s) is is a "recirculative system"; a design requirement is required to get a % overshoot lower than 10%; extended Nyquist plot with closure at infinity because of the PI; a special inverse response compensator is to be built

TSPC_Exam_2023-05-30

GOL(s) to be approximated with a Padé approximation of 1st order; a design requirement is set for either a P or PID controller with the damping ratio to be 0.71;

extended Nyquist plot with closure at infinity because of the PID

TSPC_Exam_2022-05-13

Open loop Transfer Functìon assigned through given poles and zeroes, two of which are resonant;

asymptotic Bode plots;

extended Nyquist plot with closure at infinity

TSPC_Exam_2021-06-25

3 sub systems can be connected either in series or in parallel:

in both cases extended Nyquist plot with closure at infinity

TSPC_Exam_2021-04-09

Parametric pole at open loop either negative or null or or positive;

Root Locus; Nyquist plots.

Additional task: plot and discussion of Asymptotic Bode

TSPC_Exam_2021-03-08

TSPC_Exam_2021-02-10

TSPC_Exam_2021-01-12

Parametric open loop system giving inverse-response or a zero at origin;

Root Locus;

asymptotic Bode plots.

Exan_2020-12-11

Open Loop Transfer function with dead time;

Root Locus after Padè approximation;

critical gain with Padè approximation and without it.

Exan_2020-11-13

Obtainment of the Transfer function from given poles;

Root Locus;

Bode plots;

Nyquist diagram.

Exan_2020-09-16

Open Loop Transfer function with dead time;

comparison of Root Locus and Bode plots when using Padè approximations of increasing order;

Nyquist diagram.

Exan_2020-07-10

Open loop Transfer Functìon with resonant poles and double multiplicity;

extended Nyquist plot with closure at infinity

pole-zero cancellation.

Exan_2020-06-12

Parametric open loop system giving inverse-response or a 2nd order TF;

Root Locus with a positive zero;

Bode plots;

Nyquist diagram passing exactly through the critical point.

February 5, 2020

Parametric open loop system giving inverse-response or a double pole TF;

Root Locus with a positive zero;

asymptotic Bode plots;

Nyquist diagram.

May 6, 2019 exam

Open Loop Transfer function given by 1st order, inverse-response systems;

Root Locus with imaginary axis crossing giving K_c^*;

asymptotic Bode plots;

Nyquist diagram resulting after introduction of dead time.

March 11, 2019

Transfer function with pole at origin;

Root Locus with imaginary axis crossing giving K_c^*;

definition and units of the delay margin;

Nyquist diagram resulting after introducing a dead time just equal to the delay margin within the Open Loop.

January 7, 2019

Open Loop Transfer function with triple pole at origin;

Root Locus with imaginary axis crossing giving K_c^*;

non-monotonic Bode plot;

extended Nyquist plot with closure at infinity.

January 29, 2018

Open Loop rational Transfer function;

Root Locus with imaginary axis crossing giving K_c^*;

asymptotic Bode plots;

Nyquist plot required to pass through the critical point at -1

October 6, 2017

Open Loop Transfer function with 2 distinct measuring sensors;

2 distinct Root Locus with different Closed Loop stability;

extended Nyquist plot with closure at infinity

July 18, 2017 exam

Transfer function with integrator;

Root Locus with 2 distinct values of K_c^* for switch from stability to instability;

extended Nyquist plot with closure at infinity

June 15, 2016 exam

Transfer function with resonant poles;

Nyquist plot passing through the critical point

April 4, 2016 exam

Parametric transfer function;

inverse-response system

New 
November 6, 2015

Transfer function with resonant poles;

extended Nyquist plot with closure at infinity

June 22, 2015 exam

Transfer function with poles at origin;

extended Nyquist plot with closure at infinity

Examination Texts prior to 2014

July 22, 2013

transfer function with resonant poles and double multiplicity;

extended Nyquist plot with closure at infinity

June 18, 2013 exam

May 13, 2013 exam

June 18, 2012 exam

March 1, 2012 exam

January 19, 2012

Nov. 22, 2011 exam

Oct. 24, 2011 exam

New 
Sept. 27, 2011 exam

Root Locus after Padè approximation of either 1st, 2nd or 3rd order;

Dead time compensator

July 22, 2011 exam