IC25402 Control Systems Syllabus:

IC25402 Control Systems Syllabus – Anna University UG Syllabus Regulation 2025

Course objective:

The objective of this course is to equip students with a fundamental understanding of control systems by modelling physical systems using transfer functions and statespace methods. The course aims to develop analytical skills to evaluate system behavior in both time and frequency domains, assess system stability, and design appropriate controllers and compensators to meet desired performance specifications. Through theoretical concepts and design techniques, students will gain the ability to model, analyse, and control dynamic systems effectively.

Transfer Function Modelling of the Physical Systems: Systems – open and closed loop systems configurations – Modelling: electrical, mechanical and electro-mechanical systems – Block Diagram Reduction-Signal Flow Graph.

Time Domain Analysis of the System: Standard test signals – Time response analysis of first and second order systems – Time domain specifications – Steady State Error – Generalized error series.

Stability Analysis and Root Locus: Routh Hurwitz Criteria – Root Locus: concepts and construction rules – Effect of addition of poles and Zeros – Analysis of system using Root Locus.

Frequency Domain Analysis of the System: Frequency domain analysis – specifications -Correlation between time domain and frequency domain –Open loop frequency response: Bode Plot – Polar Plot – Closed loop frequency response – Nyquist Stability Criteria.

Design of Compensator and Controller: Design specifications – Compensator network and types – Design of Lag compensator, Lead Compensator and Lag-Lead Compensator using Bode plot

State Space Analysis of the System: State Space model Representation – State space from transfer function: Phase variable, Canonical variable – Block diagram representation of state space model – Solution of state equations – controllability, observability and stability analysis of the system. – PID control algorithms – ZieglerNichols based PID controller design – Design of State Feedback controller using pole placement.

Weightage: Continuous Assessment: 40%, End Semester Examinations: 60%.

Assessment Methodology: Assignments (20%), Solution to application-oriented problems using software (20%), Review of GATE questions (20%), Internal Examinations (40%).

Tasks:

T1: Model an electrical, mechanical and electro-mechanical system using transfer function and state-space representations and analyze its time-domain response .
T2: Design a PID controllers for the process using Ziegler Nichols technique, also evaluate its performance in terms of transient and steady-state specifications.
T3: Analyze the frequency domain specifications of the system using Bode plot, Polar plot and Nyquist Plot..
T4: Design a lead, lag, or lag–lead compensators using Bode plots to meet the desired performance criteria
T5: Investigate the stability of the system using Routh–Hurwitz criterion, Root Locus technique
T6: Examine the controllability and observability of the system and design a state feedback controller for the same using pole placement technique

References

1. Nise, N. S. (2020). Control systems engineering (8th ed.). John Wiley.
2. Nagrath, I. J., & Gopal, M. (2016). Control systems engineering (5th ed., Reprint). New Age International Publishers.
3. Dorf, R. C., & Bishop, R. H. (2022). Modern control systems (14th ed.). Pearson.
4. Ogata, K. (2010). Modern control engineering (5th ed.). Prentice Hall Private Limited.
5. Kuo, B. C., & Golnaraghi, F. (2017). Automatic control systems (10th ed.). McGraw Hill Education.

E-resources

1. NPTEL course: Control Engineering – Dr. Ramkrishna Pasumarthy, Professor, IITM. https://archive.nptel.ac.in/courses/108/106/108106098/
2. Virtual Lab: Control Engineering. Link: https://ce-dei.vlabs.ac.in/