# Unit information: Control 2 in 2015/16

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Unit name Control 2 EENG23000 10 I/5 Teaching Block 2 (weeks 13 - 24) Professor. Achim Not open EENG17300, EMAT10100 or EMAT10004 EENG21000 Department of Electrical & Electronic Engineering Faculty of Engineering

## Description including Unit Aims

In this unit, the concepts of classical control theory are introduced. These are applied to the analysis and design of control systems, with particular emphasis on root locus, Bode and Nyquist techniques. Lectures are supported by laboratory work on stability analysis and position control.

Elements: Introduction & overview

System Models: time domain models, time response, forced and natural response, transfer functions

Control Systems Representation: block diagrams, signal flow graphs, Mason’s rule

Open and Closed-Loop Systems: sensitivity, transient response, steady-state error, disturbances

Introduction to Control Systems Design: pole position, 2nd order system response, standard performance measures, additional poles and zeros.

System Stability: Routh-Hurwitz stability criterion

Steady State Errors: system type number, error constants

Root Locus: introduction, root locus criteria, construction method, interpretation, compensator (PI, Lag, PD and Lead) design using root locus

Frequency Response Techniques: frequency response from pole-zero diagram, Bode diagrams, system identification, the pure delay, gain and phase margin

Nyquist Diagrams: construction, calibration, Nyquist stability criterion

Compensator Design Using Bode Diagrams: Lag and Lead compensator design

Laboratory: control of electrical machines

## Intended Learning Outcomes

Students will have a foundation in classical control theory and will be able to analyse and specify system performance parameters. This will include an understanding of the relative merits and implementation of various design methodologies in order to design control schemes to meet a particular specification.

Having completed this unit, students will be able to:

1. Analyse and specify system performance parameters for classical control systems
2. Evaluate the relative merits of various design methodologies to meet a particular specification

## Teaching Information

Lectures and Laboratory classes

## Assessment Information

Name: Lab Test WebCT

Type:Test

% of final mark: 10

Description: Test based upon the laboratory assignment

Name: Terminal Exam

Type: Exam

% of final mark: 90

Description: 2 hour written paper. Section A: Compulsory question. Section B: Answer 2 questions from a choice of 3

Quiz based on laboratory assignment, 10% (Both ILOs)

Exam, 2 hours, 90% (Both ILOs)