Syllabus

Fundamental concepts of drives (3 Hours)
Factors affecting selection of drives, speed-torque characteristics of motors and loads, condition of steady-state stability, transient stability: equal area criterion, dynamics of motor load combination, DC shunt motor and series motor braking methods and speed-torque characteristics in four quadrants, Induction motor: steady-state performance analysis, braking methods, four quadrant speed-torque characteristics, dc and ac dynamic braking

Thyristor dc drives (8 Hours)
DC drives: Performance parameters, single phase and three phase- semi converter and full converter fed separately excited dc motor and series dc motor, armature control and field control, motoring and braking operations, different modes of operation, waveforms for continuous and discontinuous current operations, expression of armature current; one-, two- and four quadrant drives, dual converter: operation with and without circulating current, waveforms of dual converter fed dc drives, power factor and THD considerations of converters, power factor improvement of phase controlled converters; sequence control of converters; one-, two- and four quadrant choppers, chopper controlled dc drives: analysis, current expressions for continuous and discontinuous current operation

Induction motor drives (10 Hours)
Static speed control of induction motor: stator voltage control, Static control of rotor resistance, Static slip power recovery scheme, VSI fed drives, V/f control, constant torque and constant power operations, closed loop V/f control, CSI fed drives Induction motor behavior with non-sinusoidal supply and unbalanced supply, PWM inverters and reduction of harmonics

Synchronous motor drives (6 Hours)
Synchronous motor drives: Steady-state performance analysis, braking methods, VSI fed synchronous motor drives, V/f control, true synchronous mode, self synchronous mode, Brushless dc motor drive

Special machine drives (2 Hours)
Reluctance motor drive, stepper motors, Switched reluctance motor drives

Intelligent control of drives (7 Hours)
Sliding mode control: sliding condition, reaching time, sliding mode controller design, design with boundary layer, application to drives.
Fuzzy logic control, different stages of fuzzy controller: fuzzification, inferencing and defuzzification, membership functions, rule base and its implementation, different defuzzification methods, fuzzy control of electric drives, fuzzy sliding mode control and its drive application.
Neural Network, application of neural network in electric drives, neuro-fuzzy inferencing system, adaptive neuro-fuzzy inferencing system (ANFIS) and applications in control of drives

1. To learn the fundamental concepts of electric drives

2. To learn power electronic control of dc drives and to select appropriate converter

3. To apply the knowledge of power electronics to control the ac machine drives

4. To apply sliding mode control, fuzzy control techniques to drives

At the end of the course, students will be able to understand motoring and braking operation of drives

At the end of the course, students will be able to design power electronic converter fed dc drives for motoring and braking operation

At the end of the course, students will be able to design inverter-fed induction motor drives for motoring and braking operation

At the end of the course, students will be able to evaluate inverter fed, and cyclo-converter fed synchronous motor drives for motoring and braking operation

At the end of the course, students will be able to use special machine drives

At the end of the course, students will be able to apply fuzzy controller, fuzzy sliding mode controller and ANFIS controller to drives

G. K. Dubey, Fundamentals of Electrical Drives, Narosa Publishing House , 2001

D. Driankov, H. Hellendoorn, and M. Reinfrank, An introduction to fuzzy control, Narosa Publishing House, New Delhi , 1996

J. J. E. Slotine and W. Li, Applied Nonlinear Control, Prentice Hall International, Englewood Cliffs , 1991

P. C. Sen, Thyristor DC Drives, Krieger Publishing Company, Florida , https://kupdf.net/download/thyristor-dc-drives-pcsen_59bfe17608bbc59a12686f5d_pdf

S. Haykin, Neural Networks: A Comprehensive Foundation, Pearson , 2001

K. B. Mohanty, "A fuzzy sliding mode controller for a field oriented induction motor drive," Journal of The Institution of Engineers (India) -EL, Vol. 86, Dec. 2005, pp. 160-165.

L. A. Zadeh, “Fuzzy logic,” Computer, IEEE Magazine, Volume: 21, Issue: 4, April 1988, pp. 83-93, DOI: 10.1109/2.53