Last modified: 28 Jun 2018 10:27
This course examines the performance and control of electrical machines and drives. Transient performance of various electrical machines (induction, synchronous and DC) is discussed using two-axis-machine theory. Steady state performance is also considered. Simulation techniques are used as appropriate in studying both transient and steady state performance of the electrical machines and drives. Medium and high-performance AC drives are considered, including V/f and vector control drives. Modern AC machine control in rotating DQ co-ordinate frame is studied in some detail. DC machine drives (thyristor-controlled and transistor-controlled drives) are discussed and analysed.
|Session||First Sub Session||Credit Points||10 credits (5 ECTS credits)|
1. Review of electrical machines characteristics. Basic-drive schemes and drive applications.
2. Fundamentals of energy conversion. Space vector, two-axis machine and reference frame theories. Torque production in cylindrical machines. Torque production in reluctance machines and elementary rotating machines.
3. Induction machine modelling. Space vector based modelling and matrix based approach. Transient and steady state performance of three phase induction motors.
4. Induction motor control, (steady state approach). Induction machine drives, (slip ring induction motor drive, v/f drive and vector controlled drives) design and analysis. Starting and braking. Converter systems for drives.
5. Cylindrical and salient pole synchronous machine modeling and design. Transient and steady state performance of a synchronous machine connected to grid. Analysis of conventional and permanent magnet synchronous machine drives, including v/f and vector controlled drives.6. DC machine modelling. Steady state and transient behaviour of various DC machines. Starting and braking methods of DC machines fed by a constant voltage supply. Thyristor controlled and transistor controlled DC machine drives analysis.
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Marked submissions (typically via MyAberdeen) will be returned to the students promptly, including feedback on the laboratory exercises. Whole-class feedback and solutions to past assignment or exams are provided via MyAberdeen.