In this unit students will acquire advanced theoretical knowledge, critical analytical and practical skills which can be applied to investigation and resolution of complex problem solving scenarios. The unit material has been developed to enhance students' communication skills, individual and group project participation and other professional capabilities important to power quality and harmonics during generation and distribution. The subject of power quality is very broad by nature. It covers all aspects of power system engineering from transmission and distribution level analyses to end-user problems. Therefore, electric power quality has become the concern of utilities, end users, architects and civil engineers as well as manufacturers. This unit is intended for undergraduate students in electrical and other engineering disciplines as well as for professionals in related fields.
The increased use of power electronic components within the distribution system and the reliance on renewable energy sources which have converters as interface between the source and the power system lead to power quality problems for the operation of machines, transformers, capacitors and power systems. Power quality of power systems affects all connected electrical and electronic equipment, and is a measure of deviations in voltage, current, frequency, temperature, force, and torque of particular supply systems and their components. In recent years there has been considerable increase in nonlinear loads, in particular distributed loads such as computers, TV monitors and lighting. These draw harmonic currents which have detrimental effects including communication interference, loss of reliability, increased operating costs, equipment overheating, machine, transformer and capacitor failures, and inaccurate power metering. This subject is pertinent to engineers involved with power systems quality control, electrical machines performance evaluation, electronic equipment for power measurement, computers for power monitoring and manufacturing equipment that is power driven.

Unit details

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Unit code:

Learning Outcomes

On successful completion of this unit, students will be able to:
  1. Apply specialist technical knowledge to determine power quality and harmonics in a variety of contexts;  
  2. Design and implement parameters of the equipment needed to diagnose power in order to determine quality and the presence of harmonics;  
  3. Apply specialist practices to ensure efficiency in both transmission and distribution of quality power;  
  4. Critique and apply specifications needed in commissioning power distribution;  
  5. Survey and propose solutions to power quality problems of electrical machines and power systems; and  
  6. Propose, implement and evaluate modelling, simulation and measuring techniques for transformers, machines, capacitors and power generation systems.  


A pass must be achieved in each assessment item in order to pass the unit.
Assessment type Description Grade
Test 2 hour in-class - equivalent to 200 words 25%
Assignment 2000 words 30%
Examination 3 Hour written examination - equivalent to 3000 words 45%
Examination requirements are explained in advance.

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