Wednesday, June 13, 2012
EE 2403 SPECIAL ELECTRICAL MACHINES Syllabus EEE Seventh(7th) Semester - Anna University - Regulation 2008
EE 2403 SPECIAL ELECTRICAL MACHINES L
T P C
3 0 0 3
AIM
To expose the students to the construction, principle of
operation and performance of special
electrical machines as an extension to the study of basic
electrical machines.
OBJECTIVES
To impart knowledge on
i. Construction, principle of operation and performance
of synchronous reluctance motors.
ii. Construction, principle of operation, control and
performance of stepping motors.
iii. Construction, principle of operation, control and
performance of switched reluctance motors.
iv. Construction, principle of operation, control and
performance of permanent magnet brushless
D.C. motors.
v. Construction, principle of operation and performance
of permanent magnet synchronous motors.
UNIT I SYNCHRONOUS RELUCTANCE MOTORS 9
Constructional features – Types – Axial and Radial flux
motors – Operating principles – Variable
Reluctance and Hybrid Motors – SYNREL Motors – Voltage
and Torque Equations - Phasor diagram
- Characteristics.
UNIT II STEPPING MOTORS 9
Constructional features – Principle of operation –
Variable reluctance motor – Hybrid motor – Single
and multi stack configurations – Torque equations – Modes
of excitations – Characteristics – Drive
circuits – Microprocessor control of stepping motors –
Closed loop control.
78
UNIT III SWITCHED RELUCTANCE MOTORS 9
Constructional features – Rotary and Linear SRMs -
Principle of operation – Torque production –
Steady state performance prediction- Analytical method
-Power Converters and their controllers –
Methods of Rotor position sensing – Sensorless operation
– Closed loop control of SRM -
Characteristics.
UNIT IV PERMANENT MAGNET BRUSHLESS
D.C. MOTORS 9
Permanent Magnet materials – Magnetic Characteristics –
Permeance coefficient -Principle of
operation – Types – Magnetic circuit analysis – EMF and
torque equations –Commutation - Power
controllers – Motor characteristics and control.
UNIT V PERMANENT MAGNET SYNCHRONOUS
MOTORS 9
Principle of operation – Ideal PMSM – EMF and Torque
equations – Armature reaction MMF –
Synchronous Reactance – Sinewave motor with practical
windings - Phasor diagram –
Torque/speed characteristics - Power controllers -
Converter Volt-ampere requirements.
TOTAL : 45 PERIODS
TEXT BOOKS:
1. T.J.E. Miller, ‘Brushless Permanent Magnet and
Reluctance Motor Drives’, Clarendon Press,
Oxford, 1989.
2. T. Kenjo, ‘Stepping Motors and Their Microprocessor
Controls’, Clarendon Press London, 1984.
REFERENCES:
1. R.Krishnan, ‘Switched Reluctance Motor Drives –
Modeling, Simulation, Analysis, Design and
Application’, CRC Press, New York, 2001.
2. P.P. Aearnley, ‘Stepping Motors – A Guide to Motor
Theory and Practice’, Peter Perengrinus
London, 1982.
3. T. Kenjo and S. Nagamori, ‘Permanent Magnet and
Brushless DC Motors’, Clarendon Press,
London, 1988.
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