06EE74 - Industrial Drives and Applications Regulation 2006 - 2007
PART – A
UNIT – I AN INTRODUCTION TO ELECTRICAL DRIVES & ITS
DYNAMICS
Electrical drives. Advantages of electrical drives. Parts of
electrical drives, choice of electrical drives, status of dc and ac drives,
Dynamics of electrical drives, Fundamental torque equation, speed torque
conventions and multiquadrant operation. Equivalent values of drive
parameters, components of low torques, nature and classification of load
torques, calculation of time and energy loss in transient operations, steady
state stability, load equalization.
UNIT – II SELECTION OF MOTOR POWER RATING
Thermal model of motor
for heating and cooling, Classes of motor duty, determination of motor rating.
UNIT – III and IV D C MOTOR DRIVES:
(a) Starting braking, transient analysis, single phase fully controlled rectifier,
control of dc separately excited motor, Single-phase half controlled rectifier
control of dc separately excited motor.
(b) Three phase fully controlled rectifier control of dc separately excited
motor, three phase half controlled controlled rectifier control of dc separately
excited motor, multiquadrant operation of dc separately excited motor fed
form fully controlled rectifier. Rectifier control of dc series motor, chopper
controlled dc drives, chopper chopper control of separately excited dc motor.
Chopper control of series motor.
PART – B
UNIT – V and VI INDUCTION MOTOR DRIVES
(a) Operation with unbalanced source voltage and single phasing, operation
with unbalanced rotor impedances, analysis of induction motor fed from nonsinusoidal
voltage supply, starting braking, transient analysis.
(b) Stator voltage control variable voltage frequency control from voltage
sources , voltage source inverter control, closed loop control, current source
inverter control, current regulated voltage source inverter control, rotor
resistance control, slip power recovery, speed control of single phase
induction motors.
UNIT – VII SYNCHRONOUS MOTOR DRIVES
Operation form faced frequency
supply, synchronous motor variable speed drives, variable frequency control
of multiple synchronous motors. Self-controlled synchronous motor drive
employing load commutated thruster inverter.
UNIT – VIII INDUSTRIAL DRIVES
Rolling mill drives, cement mill drives, paper mill
dries and textile mill drives.
REFERENCE
TEXT BOOKS:
1. Fundamentals of Electrical Drives”- G.K Dubey -2 Edition, 5th reprint Narosa publishing house Chennai, 2002.
Reference Books
1. A First Course On Electric Drives- S.K Pillai-Wiley Eastern Ltd
1990.
2. Electrical Drives- N.K De and P.K. Sen- PHI, 2007.
3. Power Electronics, Devices, Circuits and Industrial
Applications- V.R. Moorthi, “Oxford University Press, 2005.