AE11   CONTROL ENGINEERING

 

1.         Mathematical Models                                                                                   6 hours           

 

1.1               Terminology and basic structure of feedback control systems.

1.2               Concepts of state variable models, impulse response models, and transfer function (TF) models.

1.3               TF models of mechanical, electrical, thermal, and hydraulic systems.

1.4               Systems with dead-time elements.

1.5               Models of disturbances and standard test signals.

1.6               Dynamic system response to standard test signals.

 

I [1 (1.1-1.2), 2)]

 

2.         Block Diagram and Signal Graph Models of Feedback Systems                  9 hours           

 

2.1        Block diagram manipulations.

2.2        Mason’s gain rule.

2.3        Models of industrial control devices: DC and AC motors, techogenerators, synchros, LVDT, electrohydraulic valves, hydraulic actuators, elecropneumatic transducers, Flow control valves.

2.4        Application examples of motion control (position, and speed), and process control (temperature, and liquid-level).

 

 I [3]

 

3.         Basic Characteristics of Feedback Control Systems                                    7 hours           

 

3.1        Stability. 

3.2        Steady-state accuracy, transient accuracy.

3.3        Disturbance rejection.

3.4        Insensitivity and robustness.

3.5        Basic modes of feedback control: proportional, integral, and derivative (PID).

 

I [4 (4.1-4.6)]

 

4.         Stability and Performance (Time Domain)                                                     8 hours

 

4.1        Concepts of stability.

4.2        Routh stability criterion.

4.3        Performance specifications.

4.4        Steady-state error constants and system types.

 

I [5, 6 (6.1-6.6)]

 

 

5.         Compensator Design using Root Locus Plots                                               6 hours

 

5.1        The root locus concepts.

5.2        Construction of root loci.

5.3        Phase-lag, phase-lead and lag-lead compensation.

 

I [7 (7.1-7.8, 7.11)]

 

6.         Stability and Performance (Frequency Domain)                                            12 hours

 

6.1        The Nyquist stability criterion.

6.2        Stability margins.

6.3        The Bode plots.

6.4        Stability margins on the Bode plots.

6.5        Performance specifications.

6.6        Evaluating the closed-loop frequency response.

6.7        Constant-M circles.

6.8        Nichols chart.

 

I [8, 9 (9.1-9.5)]

 

7.         Compensator Design using Frequency Response Plots                               6 hours           

 

7.1               Phase-lag, phase-lead, and lag-lead compensation.

7.2               Robust control systems.

 

I [10]

 

8.         Implementation of Common Compensators                                                  6 hours

 

8.1        Passive electric networks.

8.2        Op-Amp usage.

8.3        Use of digital computer as compensator device.

8.4        Tuning of PID controllers.

 

I [11]

 

 

Text Books

 

I.        M.Gopal, Control Systems: Principles and Design, 2nd edition, New Delhi : Tata McGraw-Hill, 2002.

 

 

 

Reference Books

1.                   B.C. Kuo and F. Golnaraghi, Automatic Control Systems, 8th edition, John Wiley, 2003

2.                   K. Ogata, Modern Control Engineering, 4th edition, Pearson Education, 2002