Syllabus

Fundamentals of electric drives 12 Hours
Factors affecting selection of drives, characteristics of motors, types of load, torque balance, motor and load dynamics, steady state and transient stability, equal area criterion of stability, thermal considerations in motors, choice of appropriate motor rating based on heating; starting, braking and speed control characteristics of dc and ac motors, transients in dc and ac drives, starting and braking time.

Thyristor dc drives 12 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.

Closed loop control of dc drives 16 Hours
Closed loop control of dc drives: transfer function and state space modeling, inner and outer current control, current limit control, realization of P-I controller, design of controllers: Proportional speed control and inner current control, P-I speed controller with inner current control, load torque disturbance effects; series DC motor modeling; PLL based control of dc drives, Programmable logic control (PLC) of drives, state feedback control, pole placement design; sliding mode control: sliding condition, reaching time, sliding mode controller design, design with boundary layer; fuzzy control, fuzzy sliding mode control and adaptive neuro-fuzzy inferencing system (ANFIS) control of drives; other recent control techniques for industrial drives.

To learn the fundamental concepts of electric drives and to select motor of appropriate rating

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

To design and develop closed loop controlled dc drives

To apply sliding mode control, fuzzy control and other recent control techniques to drives

CO1: Ability to select appropriate drive with correct rating of motor
CO2: Ability to select appropriate power electronic converter for dc drives
CO3: Ability to develop transfer function and state-space model of dc drives
CO4: Ability to design closed loop controlled dc drives, and design and realize P-I controller
CO5: Ability to design sliding mode controller for drives
CO6: Ability to design fuzzy controller, neuro-fuzzy controller and fuzzy sliding mode controller for drives

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

G. K. Dubey, Fundamentals of Electrical Drives, Narosa Publishing House, New Delhi , Second Edition, 2001<br /><br />Second Edition, Narosa Publishing House, New Delhi, 2001

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

N. K. De and P. K. Sen, Electric Drives, PHI Learning Pvt. Ltd., New Delhi , 2012

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

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