JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisite

Control Systems

Course Objectives:

• To present an overview of theoretical and practical aspects of adaptive control
• To understand and apply adaptive controls in practical and industrial control systems.

Course Outcomes

After completion of this course, the student should be able to:

• Design and implement system identification experiments
• Utilize input-output experimental data for identification of mathematical dynamical models.
• design adaptive controls using system identification methods

UNIT - I

Introduction - use of Adaptive control - definitions - essential aspects – classification - Model

Reference Adaptive Systems - different configurations - classification - mathematical description -

Equivalent representation as a nonlinear time varying system - direct and indirect MRAC.

UNIT - II

Continuous time MRAC systems - Model Reference Adaptive System Design based on Gradient method, Design of stable adaptive controllers based on Kalman - Meyer - Yakubovich Lemma, Lyapunov theory, Hyper stability theory .

UNIT - III

Self Tuning Regulators (STR) - different approaches to self tuning - Recursive parameter estimation - implicit STR - Explicit STR. STR design based on pole - placement technique and LQG theory.

UNIT - IV

Adaptive control of nonlinear systems - Adaptive predictive control - Robustness of adaptive control systems - Instability phenomena in adaptive systems.

UNIT - V

Concept of learning control systems. Different types of learning control schemes. LTI learning control via parameter estimation schemes. Convergence of learning control.

TEXT BOOKS:

nd

• 1. K. J. Astrom and Bjorn Wittenmark, “Adaptive control”, Pearson Edu., 2 Edition.
• 2. Sankar Sastry, “Adaptive control”.
• 3. K. S. Narendra and A. M. Annaswamy, Stable Adaptive Systems, Prentice Hall INC, 2012.

REFERENCES:

• 1. V. V. Chalam, “Adaptive Control System - Techniques & Applications”, Marcel Dekker Inc.
• 2. Miskhin and Braun, Adaptive control systems, McGraw Hill
• 3. Karl Johan Åström, Graham Clifford Goodwin, P. R. Kumar, “Adaptive Control, Filtering and Signal Processing”
• 4. G. C. Goodwin, “Adaptive control”. M. Tech – I Year – II Sem. (Control Engg. / Control Sys.)