AP7003 DIGITAL CONTROL ENGINEERING

AP7003     DIGITAL CONTROL ENGINEERING

UNIT I     PRINCIPLES OF CONTROLLERS

Review of frequency and time response analysis and specifications of control systems, need for controllers, continues time compensations, continues time PI, PD, PID controllers, digital PID controllers. 

UNIT II      SIGNAL PROCESSING IN DIGITAL CONTROL

Sampling, time and frequency domain description, aliasing, hold operation, mathematical model of sample and hold, zero and first order hold, factors limiting the choice of sampling rate, reconstruction. 

UNIT III MODELING AND ANALYSIS OF SAMPLED DATA CONTROL SYSTEM

Difference equation description, Z-transform method of description, pulse transfer function, time and frequency response of discrete time control systems, stability of digital control systems, Jury's stability test, state variable concepts, first companion, second companion, Jordan canonical models, discrete state variable models, elementary principles. 

UNIT IV DESIGN OF DIGITAL CONTROL ALGORITHMS

Review of principle of compensator design, Z-plane specifications, digital compensator design using frequency response plots, discrete integrator, discrete differentiator, development of digital PID controller, transfer function, design in the Z-plane. 

UNIT V PRACTICAL ASPECTS OF DIGITAL CONTROL ALGORITHMS

Algorithm development of PID control algorithms, software implementation, implementation using microprocessors and microcontrollers, finite word length effects, choice of data acquisition systems, microcontroller based temperature control systems, microcontroller based motor speed control systems. 

REFERENCES : 

1. M.Gopal, "Digital Control and Static Variable Methods", Tata McGraw Hill, New Delhi, 1997. 

2. John J. D'Azzo, "Constantive Houpios, Linear Control System Analysis and Design", Mc Graw Hill, 1995. 

3. Kenneth J. Ayala, "The 8051 Microcontroller- Architecture, Programming and Applications", Penram International, 2nd Edition, 1996.