Anna University
Department of Electrical and Electronics Engineering
Seventh Semester
EE2403 Special Electrical Machines
Nov / Dec 2013 Important Questions
(Regulation 2008)
Unit 1
1. Explain Axial and Radial Flux Synchronous Reluctance Motors
2. Drive the Voltage and Torque Equation of Synchronous Reluctance Motor
3. Explain Speed - torque and Torque angle characteristics of Synchronous Reluctance Motor
4. Explain the Construction and working of Synchronous Reluctance Motor
5. Write about Vernier Motor
Unit 2
1. Explin Variable Reluctance Stepper Motor
2. Write about Bipolar drives for Stepper Motor
3. Explain the various mode of Excitation
4. With Block diagram, Explain Microprocessor Control
Unit 3
1. Explain the Speed - Torque Characteristics of Switched Reluctance Motor
2. Drive the Voltage and Torque Equation of SRM.
3. Microprocessor based control of SRM
4. Explain about Converter topologies of SRM
Unit 4
1. Magnetic Circuit Analysis of PMBLDC
2. Difference b/w Electronic and Mechanical Commutator
3. Explain the principle of operation and construction of PMBLDC
4. Explain the Structure of Power Controller
Unit 5
1. Speed Torque Characteristics of Permanent Magnet Synchronous Motor
2. Explain about Vector Control.
3. With neat Block diagram, Explain Microprocessor based control of Permanent Magnet Synchronous Motor
4. Drive the Torque and Emf equation of Permanent Magnet Synchronous Motor.