IC8451 - CONTROL SYSTEMS (Syllabus) 2017-regulation Anna University

IC8451	CONTROL SYSTEMS	LPTC

3003

COURSE OBJECTIVES:

• To understand the use of transfer function models for analysis physical systems and introduce the control system components.
• To provide adequate knowledge in the time response of systems and steady state error analysis.
• To accord basic knowledge in obtaining the open loop and closed–loop frequency responses of systems.
• To introduce stability analysis and design of compensators
• To introduce state variable representation of physical systems

UNIT I	SYSTEMS AND REPRESENTATION	9

Basic elements in control systems: – Open and closed loop systems – Electrical analogy of mechanical and thermal systems – Transfer function – AC and DC servomotors – Block diagram reduction techniques – Signal flow graphs.

UNIT II	TIME RESPONSE	9

Time response: – Time domain specifications – Types of test input – I and II order system response – Error coefficients – Generalized error series – Steady state error – Root locus construction- Effects of P, PI, PID modes of feedback control –Time response analysis.

UNIT III	FREQUENCY RESPONSE	9

Frequency response: – Bode plot – Polar plot – Determination of closed loop response from open loop response - Correlation between frequency domain and time domain specifications

UNIT IV	STABILITY AND COMPENSATOR DESIGN	9

Characteristics equation – Routh Hurwitz criterion – Nyquist stability criterion- Performance criteria – Effect of Lag, lead and lag-lead compensation on frequency response-Design of Lag, lead and lag- lead compensator using bode plots.

UNIT V	STATE VARIABLE ANALYSIS	9

Concept of state variables – State models for linear and time invariant Systems – Solution of state and output equation in controllable canonical form – Concepts of controllability and observability.

TOTAL (L:45+T:30): 75 PERIODS

COURSE OUTCOMES: At the end of the course, the student should have the :

• Ability to develop various representations of system based on the knowledge of Mathematics, Science and Engineering fundamentals.
• Ability to do time domain and frequency domain analysis of various models of linear system.
• Ability to interpret characteristics of the system to develop mathematical model.
• Ability to design appropriate compensator for the given specifications.
• Ability to come out with solution for complex control problem.
• Ability to understand use of PID controller in closed loop system.

TEXT BOOKS:

1. Nagarath, I.J. and Gopal, M., “Control Systems Engineering”, New Age International Publishers, 2017.
2. Benjamin C. Kuo, “Automatic Control Systems”, Wiley, 2014.

REFERENCES:

1. Katsuhiko Ogata, “Modern Control Engineering”, Pearson, 2015.
2. Richard C.Dorf and Bishop, R.H., “Modern Control Systems”, Pearson Education,2009.
3. John J.D., Azzo Constantine, H. and Houpis Sttuart, N Sheldon, “Linear Control System Analysis and Design with MATLAB”, CRC Taylor& Francis Reprint 2009.
4. Rames C.Panda and T. Thyagarajan, “An Introduction to Process Modelling Identification and Control of Engineers”, Narosa Publishing House, 2017.
5. M.Gopal, “Control System: Principle and design”, McGraw Hill Education, 2012.
6. NPTEL Video Lecture Notes on “Control Engineering “by Prof. S. D. Agashe, IIT Bombay.