Electric Energy
Conversion (ELEC2102) course
Electric Vehicle
Technology (ELEC3104) course
Advanced Topics in
Electric Drives and Control (ELEC6001) course
Advanced Electric
Vehicle Technology (ELEC6002) course
Electric
Energy Conversion (ELEC2102)
Course Objectives
This course provides the principles and operation of electric machines as
well as the basic principles of electric heating, lighting and
electrochemistry.
Calendar Entry
Electric machines: power transformers; windings; synchronous machines;
induction machines; dc machines; special machines; thermal ratings. Electric
heating. Lighting. Electrochemistry.
Course Contents (with
indication of no. of hours for each topic)
Power Transformers (4 hours): 3-phase connections; harmonics; tap-changing;
parallel operation.
Ac Windings (3 hours): 3-phase windings; mmf and flux density distribution;
winding emfs; harmonics.
Synchronous Machines (4 hours): Cylindrical and salient-pole construction;
equivalent circuits; losses and efficiency; voltage regulation; operation on
infinite bus-bars; power/load angle relation.
Induction Machines (4 hours): Squirrel-cage and wound-rotor construction;
equivalent circuits; losses and efficiency; torque-speed characteristics; speed
control; starting and braking.
Dc Machines (4 hours): Shunt, series and compound types; armature reaction
and commutation; equivalent circuits; losses and efficiency; torque-speed
characteristics; speed control; starting and braking.
Special Machines (4 hours): Introduction to single-phase induction motors,
servo motors, universal motors and stepping motors.
Thermal Ratings (4 hours): Machine ratings; heat dissipation;
temperature-rise/time relation; cooling methods.
Electric Heating (4 hours): Introduction to direct resistive heating,
indirect resistive heating, induction heating and dielectric heating;
applications.
Lighting (4 hours): Introduction to incandescent lamps, low-pressure
discharge lamps and high-pressure discharge lamps; applications.
Electrochemistry (4 hours): Introduction to electrochemical reactions and
electrochemical cells; applications.
References:
M.G. Say: Alternating Current Machines. Pitman.
A.E. Fitzgerald et al.: Electric Machinery. McGraw-Hill.
W. Elenbaas: Light Sources. Macmillan.
D. Berndt: Maintenance-Free Batteries. John Wiley & Sons.
Laboratory:
Two 3-hour experiments
Electric
Vehicle Technology (ELEC3104)
Course Objectives
To study electric vehicle system and its society impacts, with emphasis on
the electric propulsion system.
Calendar Entry
Electric Vehicle (EV) considerations, configurations and requirements;
electric propulsion systems; motor drives; batteries; battery chargers and
state-of-charge indications; EV auxiliaries; environment impacts;
infrastructure needs.
Course Contents (with
indication of no. of hours for each topic)
EV Systems (6 hours): Configurations, parameters, specifications.
Comparisons between converted and purpose-built EVs. System concepts in EV
design. Hybrid EVs. Series, parallel and series/parallel hybrids.
EV Propulsion (10 hours): Classification, selection criteria and
characteristics of various EV motor drives. Single-motor and multiple-motor
configurations. Single-speed and multiple-speed arrangements. Direct-drive
motorized wheels. Emerging electric propulsion systems.
EV Energy Sources (10 hours): Classification, selection criteria and
characteristics of various EV batteries. Fuel cells. Ultracapacitors.
Ultrahigh-speed flywheels. Hybrid energy systems. Emerging energy sources for
EVs.
EV Auxiliaries (6 hours): Battery chargers and charging schemes.
State-of-charge indicators and driving range estimators. Energy management
systems. Temperature control units. Range extenders. Power accessories.
EV Impacts (7 hours): Energy benefits. Environmental benefits. Economic and
promotion aspects. Infrastructure needs. Legislation and regulation.
Standardization. Recent development.
References:
Proceedings of International Electric Vehicle Symposium
Laboratory:
Two mini projects
Advanced
Topics in Electric Drives & Control (ELEC6001)
Objectives:
This course aims at offering an in-depth knowledge of the latest topics of
electric drives and control.
Calendar Entry:
Selected topics from the latest development in the areas of electric drives
and control.
Contents:
Advanced induction drives and control:
Advanced induction drives, vector control, flux-weakening control,
efficiency-optimizing control.
Permanent-magnet brushless drives and control:
Permanent-magnet brushless ac and dc drives, phase decoupling concept,
vector control, flux-weakening control, advanced conduction angle control,
efficiency-optimizing control.
Reluctance drives and control:
Synchronous reluctance and switched reluctance drives, computer-aided
design, dynamic operation, control strategies.
Ultrasonic drives and control:
Wedge-type ultrasonic and traveling-wave ultrasonic drives, mathematical
modeling, position and speed control, applications.
References:
1. Peter Vas, Vector Control of Ac Machines. 1990, Oxford University Press.
2. T.J.E. Miller, Brushless Permanent-Magnet and Reluctance Motor Drives.
1989, Oxford University Press.
3. T.J.E. Miller, Switched Reluctance Motors and Their Control. 1993, Oxford
University Press.
4. S. Ueha and Y. Tomikawa, Ultrasonic Motors: Theory and Applications.
1993, Oxford University Press.
Advanced
Electric Vehicle Technology (ELEC6002)
Objectives:
This course aims at offering an in-depth knowledge of the latest technology
of electric vehicles.
Calendar Entry:
Selected topics from the latest development in the areas of electric vehicle
technology.
Contents:
System design concept: Subsystem interaction, system integration, system
optimization, system-level computer simulation.
Advanced EV propulsion systems: EV motor drives, power converters,
transmission and differential systems.
Advanced EV energy source systems: EV batteries, fuel cells,
ultracapacitors, ultrahigh-speed flywheels, hybrid energy systems.
Intelligent energy management systems: EV battery chargers, inductive
charge, park-and-charge, move-and-charge, regenerative charge, battery
monitoring.
Impacts on power systems: Loading leveling, system planning, harmonic load
flow, tariff.
References:
Proceedings of the International Electric Vehicle Symposium