Special Electrical Machines
- Lecture Notes, Study Materials and Important questions answers

Subject : Special Electrical Machines

SYNCHRONOUS RELUCTANCE MOTORS

1. Construction of Synchronous Reluctance Motor - Answer (click here)
2. Rotor Design - Synchronous Reluctance Motor - Answer (click here)
3. Rotor Construction - Synchronous Reluctance Motor - Answer (click here)
4. Working of Synchronous Reluctance Motor - Answer (click here)
5. Primary Design Considerations - Synchronous Reluctance Motor - Answer (click here)
6. Torque - Speed Characteristics - Synchronous Reluctance Motor - Answer (click here)
7. Phaser Diagram of Synchronous Reluctance Motor - Answer (click here)
8. Advantages, Disadvantages and Applications of Synchronous Reluctance - Answer (click here)
9. Vernier Motors - Answer (click here)

STEPPER MOTORS

1. Stepping Motor - Answer (click here)
2. Classification of Stepper Motors - Answer (click here)
3. Single Stack Variable Reluctance Stepper Motor: Construction and Principle of Operation - Answer (click here)
4. Micro Stepping Control of Stepping Motor - Answer (click here)
5. Multistack Variable Reluctance Stepper Motor - Answer (click here)
6. Hybrid stepper motor - Answer (click here)
7. Claw Tooth PM Motor - Answer (click here)
8. Single Phase Stepping Motor - Answer (click here)
9. Theory of Torque Prediction - Answer (click here)
10. Terminologies Used in Stepper Motor - Answer (click here)
11. Characteristics of Stepper Motor - Answer (click here)
12. Torque-Speed Characteristics - stepper motor - Answer (click here)
13. Figures of Merit (FM's) - stepper motor - Answer (click here)
14. Drive System and Control Circuitry for Stepper Motor - Answer (click here)
15. Linear And Non Linear Analysis - stepper motor - Answer (click here)
16. Application of Stepper Motor - Answer (click here)

SWITCHED RELUCTANCE MOTORS SRM

1. Switched Reluctance Motor - Answer (click here)
2. Construction and operation of SRM(Switched Reluctance Motor) - Answer (click here)
3. Power Semiconductor Switching Circuits for SRM(Power Controllers) - Answer (click here)
4. Voltage and Torque Equations of SRM(Switched Reluctance Motor) - Answer (click here)
5. Control Circuits For SRM(Switched Reluctance Motor) - Answer (click here)
6. Hysterisis Type Current Regulation - Answer (click here)
7. Voltage PWM Type Current Regulation - Answer (click here)
8. Torque-Speed Characteristics of SRM(Switched Reluctance Motor) - Answer (click here)
9. Distinction Between Switched Reluctance Motor And The Variable Reluctance Stepper Motor: Merits, Demerits, Application - Answer (click here)
10. Shaft Position Sensing - Answer (click here)
11. Microprocessor or Computer Based Control of SRM Drive - Answer (click here)

PERMANENT MAGNET BRUSHLESS DC MOTORS

1. Permanent Magnet Brushless D.C. Motors - Answer (click here)
2. Constructional Features of BLPM Motors - Answer (click here)
3. B – H Loop and Demagnetization Characteristics of BLPM Motors - Answer (click here)
4. Principle of Operation of Brushless PM DC Motor - Answer (click here)
5. Classification Of BLPM Dc Motor - Answer (click here)
6. Emf Equation of BLPM SQW DC Motors - Answer (click here)
7. Basic Voltage Equation of BLPMDC Motor - Answer (click here)
8. Torque Equation of BLPM Square Wave Motor - Answer (click here)
9. Torque- Speed Charactersistics of BLPM SQM DC Motor - Answer (click here)
10. Commutation in Motors With 120° and 180° Magnet Arc - Answer (click here)
11. Magnetic Circuit Analysis on Open Circuit - Answer (click here)
12. A controller for BLPM SQW DC Motor - Answer (click here)
13. Types of BLPM motor - Answer (click here)

PERMANENT MAGNET SYNCHRONOUS MOTORS PMSM

1. Permanent Magnet Synchronous Motor - Answer (click here)
2. Construction and Principle of Operation - Permanent Magnet Synchronous Motor - Answer (click here)
3. EMF Equation of BLPM Sine Wave Motor - Answer (click here)
4. Torque Equation of BLPM Sine Wave Motor - Answer (click here)
5. Phasor Diagram of a Brushless PM SNW or BLPB Synchronous Motor - Answer (click here)
6. Permissible Torque-Speed Characteristics - Permanent Magnet Synchronous Motor - Answer (click here)
7. Vector Control of BLPM SNW Motor - Answer (click here)
8. Self Control of PMSM - Answer (click here)
9. Microprocessor Based Control of PMSE - Answer (click here)