ELEN E4501

1. INTRODUCTION
   
   
2. MAGNETIC CIRCUITS
• Magnetic circuit laws.
• Linear analysis.
• Nonlinear analysis of single loop circuits.
• Graphical analysis of general nonlinear circuits.
3. ENERGY STORAGE
• Interaction of fields and materials.
• Electric energy storage.
• Magnetic energy storage.
• Circuit parameters of energy storage devices.
• Elementary design of energy storage devices.
• Residual parameters of energy storage devices by quasi-static analysis.
• Circuit behavior of nonlinear energy storage devices.
4. ENERGY LOSS
• High frequency dielectric and magnetic energy loss.
• Complex permittivity and permability.
• Hysteresis and eddy current losses.
• Complete equivalent circuit of energy storage devices.
5. ENERGY TRANSFER
• Ideal 2-winding transformer.
• Ideal multi-winding transformer.
• Non-ideal 2-winding transformer.
• Equivalent circuits.
6. MAXWELL'S EQUATIONS FOR MOVING MEDIA
• Effects of motion of polarizable, magnetizable and conductive media.
• Relation between fields in moving and stationery frames of reference.
7. DYNAMIC EQUATIONS OF LUMPED ELECTROMECHANICAL SYSTEMS
• Principles of virtual work.
• Derivation of mechanical force of electromagnetic origin from energy and co-energy.
• Nonlinear equations of motion.
8. INCREMENTAL MOTION ANALYSIS
• Linearization of equations of motion.
• Solutions.
9. PRINCIPLES OF ROTATING MAGNETIC DEVICES
• Derivation of torque from energy and co-energy.
• Reluctance motor.
• Single phase synchronous machine (with current excitation).
• Single phase general.
10. TWO-PHASE ROTATING MACHINES
• Two-phase generalized machine.
• Torque for a smooth air gap machine.
• Criteria for conversion of average power.
• Explanation by revolving magnetic field concept.
• Equations of motion.
11. MICRO-MACHINES AND MICRO-INSTRUMENTATION
• Surface micro-machining processed in LPCVD polysilicon, silicon nitride and polymide.
• IC-processed electrostatic micro-motors, precision sensors and micro-actuators.
12. SUPERCONDUCTIVITY AND APPLICATIONS
• Transition temperature and critical magnetic field.
• Landau's equations.
• Applications in magnet technology, electric generators, high power cables and magnetic levitation.