Power and Machines

Wedi cwblhau'r modiwl dylai'r myfyrwyr fedru:

1. Show detailed understanding of single/three phase voltages and the creation thereof.
2. Both analyse and perform detailed calculations on electrical circuits, electromechanical systems, electronic systems, and networks.
3. Display an understanding of the essential principles, theory and limitations for the different types of electrical machines and drivers.

This module aims to embed mathematical techniques and simulations in the design of power and motor systems. Different types of motors will be outlined alongside high power semiconductors. Students will gain an excellent understanding of the technologies that have and will increasingly underpin future electrification applications.

The module aims to provide the theoretical knowledge to analyse electrical and electronic systems and use mathematical techniques in the simulation of these systems.
To provide an understanding of the essential principles, theory and limitations for the different types of electrical machines/motors and drivers.
To develop an ability to analyse electrical machines and basic power systems.

Electromagnetics - Fundamental electromagnetic and magnetic circuit theory, and calculations. Transformer principles.
Three-phase circuits – Electromagnetic generation of 3-phase voltages. Line and phase voltages for star and delta connections; star-delta/delta-star transformations. Calculations for basic three- and four-wire systems with balanced and unbalanced loads. Measurement of three-phase active power.

Circuit theorems and applications to complex AC and DC networks and electronic circuits.
Simulation of electrical, electronic and electro-mechanical systems using software packages.
Power Systems - Power system energy sources including renewables. The grid system and system components. The one-line diagram. Three-phase short and medium length transmission line models and calculations. Single phase and three-phase radial distributor and ring distributor calculations. Power factor improvement theory and calculations.
Single-Phase Power Transformers - Construction. Principles of operation. Derivation of emf equation. Losses. Models and calculations for current, regulation and efficiency.
Three-phase transformers - Overview of construction and operation.

DC Machines as the basis for the general machine model
Torque speed characteristics
Armature reaction, compensating windings, commutation, interpoles.
Brushless dc drives: Principles of operation: sinusoidal and trapezoidal drives. Relationship to brushless dc machine.
AC Synchronous Machines
Salient pole Synchronous Machine.
Circuit analysis of electrical machines: -
Permanent magnet synchronous machines: salient pole operation and the application of field weakening.
AC asynchronous machines
Induction machine models for control purpose.
Power Semiconductor Devices - Basic operating and control characteristics of power diodes, power transistors, thyristors, triac. Introduction to switching losses.
Introduction to Power Electronic Converters - Analysis of uncontrolled and controlled single-phase and three phase rectifiers, single-phase and three-phase inverters, and d.c. choppers. Motor Drives - Introduction to the application of power electronic converters to motors for speed and torque control purposes.
Basic introduction to battery technology, Solar PV and Smart Grid.

Mae'r modiwl hwn yn cydymffurfio a FfCChC Lefel 5