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ELK 332E SPRING 2004 |
Course Outline |
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Week |
Topics |
Source |
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1 |
Introduction: overview of electrical machines, units; Rotational Motion: angular position, angular velocity, angular acceleration, torque; Newton's Law of Rotation: work, power; Magnetic Fields: production of magnetic fields, magnetic circuits, magnetic behavior of ferromagnetic materials, losses on ferromagnetic cores; Faraday's Law; Induced Force on a Wire; Induced Voltage on a Wire; Linear DC Machine Principles: generator, motor operation. |
CHAPTER 1: INTRODUCTION TO MACHINERY PRINCIPLES |
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2 |
Simple Loop in a Uniform Magnetic Field; voltage induced in a simple rotating loop, torque induced in a current carrying loop; Rotating Magnetic Field Theory: proof of concept, relationship between electrical frequency and speed of rotation, reversing the direction of rotation; magnetomotive force and flux distribution in AC machines. |
CHAPTER 4: AC MACHINERY FUNDAMENTALS; APPENDIX B: COIL PITCH AND DISTRIBUTED WINDINGS |
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3 |
Induced voltage: induced voltage in a coil on a two-pole stator, three set of coils, three phase stator; induced torque, winding insulation, power flow and losses: copper losses, core losses, mechanical losses, stray losses, power flow diagram; voltage and speed regulation. |
CHAPTER 4: AC MACHINERY FUNDAMENTALS |
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4 |
Generator construction; speed of rotation; internal generated voltage; equivalent circuit; phasor diagram; power and torque; measuring generator model parameters: short-circuit ratio. |
CHAPTER 5: SYNCHRONOUS GENERATORS |
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5 |
Operation Alone: effect of load changes; parallel operation: conditions, parallel connection procedures, frequency-power and voltage-reactive power characteristics, parallel generators operating with large power systems, parallel operation with other generators. |
CHAPTER 5: SYNCHRONOUS GENERATORS |
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6 |
Generator Transients: transient stability, short circuit transients, Generator Ratings: voltage, speed and frequency ratings, apparent power and power factor ratings, capability curves, short-time operation and service factor. |
CHAPTER 5: SYNCHRONOUS GENERATORS; APPENDIX C: SALIENT POLE THEORY OF SYNCHRONOUS MACHINES |
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7 |
Basic Principles: equivalent circuit, from a magnetic field perspective; Steady-State Operation: torque-speed characteristics, effects of load changes, effects of field current, power-factor correction, synchronous capacitor or synchronous condenser. |
CHAPTER 6: SYNCHRONOUS MOTORS |
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8 |
Starting Synchronous Motors: reducing electrical frequency, using an external prime mover, using amortisseur windings, effects of amortisseur windings on stability, motor ratings. |
CHAPTER 6: SYNCHRONOUS MOTORS |
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9 |
Simple Rotating Loop between Curved Pole Faces: voltage induced in a rotating loop, getting DC voltage out of a rotating loop, induced torque in a rotating loop; Commutation in A simple Four-Loop DC Machine; Commutation and Armature Construction in Real DC Machines: rotor coils, connections to the commutator segments, lap winding, wave winding, frog-leg winding; |
CHAPTER 8: DC MACHINERY FUNDAMENTALS |
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10 |
Problems with Commutation in Real Machines: armature reaction, L di/dt voltages, Solutions to the Problems with Commutation: brush shifting, commutating poles or interpoles, compensating windings; Internal Generated Voltage and Induced Torque Equations; Construction of DC Machines: poles, frame, rotor, armature commutator and brushes, winding insulation; Power Flow and Losses: electrical or copper losses, brush losses, core losses, mechanical losses, stray losses, power-flow diagram. |
CHAPTER 8: DC MACHINERY FUNDAMENTALS |
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11 |
Equivalent Circuit; Magnetization Curve; Separately Excited and Shunt Motors: terminal characteristic of a shunt DC motor; nonlinear analysis of a shunt DC motor, speed control of shunt DC motors; |
CHAPTER 9: DC MOTORS AND GENERATORS |
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12 |
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CHAPTER 9: DC MOTORS AND GENERATORS |
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13 |
Compounded DC Motor: torque-speed characteristics of cumulative and differential compounded DC motors, nonlinear analysis of compounded DC motors; Separately-Excited Generator: terminal characteristics, control of terminal voltage, nonlinear analysis; Shunt Generator: voltage built-up, terminal characteristics, voltage control, analysis; |
CHAPTER 9: DC MOTORS AND GENERATORS |
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14 |
Series Generators: terminal characteristics; Cumulatively Compounded Generators: terminal characteristics, voltage control, analysis; Differential Compounded Generators: terminal characteristics, voltage control. |
CHAPTER 9: DC MOTORS AND GENERATORS |
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© 2003 Levent Ovacik, |