NG2S856 - Power, Machines and Power Electronic Devices 01 Jul 2022 - 31 Aug 2028 | Version 3

Associated Module Information

Module Code: NG2S856
Module Title: Power, Machines and Power Electronic Devices
Faculty: Faculty of Computing, Engineering and Science
Faculty Group: Information and Electronics
Faculty Sub Group: Electronics
Module Leader: Clive Morgan, Eurfyl Davies
Module Team: Ben Mehenni, Sarah Moses
First Intended Intake: SEP 2017 Final Year of Intake: 2027
Date Closed:
Credit Value: 20 Credit Level: 5
Language: English
Percentage of Module Taught in Welsh: 0
Equivalent Module:
HECOS codes: 100163 - electrical and electronic engineering
HECOS Code Weighting: 100

Document Version Information

Version 3
Valid From 01 Jul 2022
Valid To 31 Aug 2028

Module Aims

The aims of this module are to:
To provide students with an understanding and the ability to analyse well understood modern power electronics systems.

To provide students with an understanding and the ability to analyse well understood electrical machines and power systems.

Content Summary

Machines and Power Systems
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, calculations.

D.C. Motors and Generators - Construction. Principles of operation. Models and operating characteristics of separately excited, series, shunt and compound connected motors and generators. Calculations for machine torque, speed, losses and efficiency.

Three-Phase Induction Motors - Construction of wound rotor and cage rotor types. Principles of operation, including electromagnetic theory. Motor models and calculations for current and torque. Torque-speed characteristics. Speed and efficiency calculations.

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.

Power Electronics
Power electronic components - Power diodes, transistors, thyristors, dynamic switching characteristics, applications. Introduction to gate drive circuits and protection of devices and circuits.

Power supplies and circuits – Linear series and shunt regulators. Introduction to switched mode circuits and uninterruptible power supplies. Charge controller circuits. Inverters in renewable energy systems.

Introduction to Power Electronic Converters - Analysis of uncontrolled and controlled single-phase and three-phase rectifiers, single-phase and three-phase inverters, and dc choppers.

Motor Drives - Introduction to the application of power electronic converters to motors for speed and torque control purposes.

Learning and Teaching Methods

Activity Type Hours
Lecture 38
Practical classes and workshops 10
Independent Study 100
Directed Study 42
Formative Assessment - Independent 10
Total Hours Selected 200

Learning Outcomes

# Learning Outcome
LO1 Will be able to demonstrate a sound understanding of the operating principles of power electronic systems and an ability to analyse them.
LO2 Will be able to demonstrate a sound understanding of the operating principles of machines and power systems and an ability to analyse them.

Module Requisites

N/A

Assessment Criteria

Assessment Category Assessment Type Description Duration Word Count Weight (%) Best of? Pass Mark
Synchronous Onsite Practical Assessment Practical Coursework (Onsite) 1 Exercises undertaken in class or in laboratory aimed at assessing the application of knowledge, analytical, problem-solving or evaluative skills with written report. 0 1500 50 No 40
Synchronous Onsite Assessment (Exam) Onsite Closed Book Examination 1 A test of knowledge and understanding by unseen questions, delivered onsite and time constrained. A closed book examination assessing both learning outcomes. 120 N/A 50 No 40

Assessment Matrix

Assessment Type Learning Outcomes
LO1 LO2
Practical Coursework (Onsite) 1
Onsite Closed Book Examination 1

Reading List

Hughes, A. and Drury, B. (2019) Electric Motors and Drives. 5th Ed. Elsevier. ISBN: 9780081026151.

Andrzej M. Trzynadlowski (2015) Introduction to Modern Power Electronics, 3rd Ed. Wiley. ISBN: 978-1-119-00323-6.

Wildi, T. (2013) Electrical Machines, Drives and Power Systems: Pearson New International Edition, 6th Ed. Pearson. ISBN 13:9781292024585; ISBN 10:1292024585.