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Unit information: Power Electronic Systems in 2018/19

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Unit name Power Electronic Systems
Unit code EENGM7011
Credit points 10
Level of study M/7
Teaching block(s) Teaching Block 1 (weeks 1 - 12)
Unit director Professor. Stark
Open unit status Not open




School/department Department of Electrical & Electronic Engineering
Faculty Faculty of Engineering


This unit covers the operation of power electronic circuits set into the context of actuation and renewable energy generation. The fundamental converter topologies are covered first as a means to understanding more complex 3-phase inverters. Inverter operation is studied in examples and by computer simulation. Finally, their integration into larger systems is discussed, for example where inverters tie renewable energy generation to electrical networks. Power quality, network stability, influence of parasitics and layout, and energy efficiency are topics throughout.

Intended learning outcomes

Having completed this unit, students will be able to:

  1. Recommend various levels of abstraction for the design process, from analysing simple circuits with real switching, through more complex topologies where switches are considered ideal, to system integration, where converters are considered ideal (non-switching);
  2. Estimate storage and passive component values in converters and power management systems;
  3. Analyse switching circuits that are based on 3 fundamental power electronic building blocks, and derive quantitative waveforms;
  4. Select switching devices and circuits based on minimal application data;
  5. Compute certain aspects of output voltage spectra for power electronic circuits, and debate the benefits of various topologies and switching methods in terms of output harmonics;
  6. Determine circuit waveforms in 3-phase inverters as a function of various load and fault conditions;
  7. Analyse grid-tied systems using phasor diagrams;
  8. Compute control parameters as a function of network power requirements (active and reactive), and analyse control requirements;
  9. Select and critically debate system integration topologies for different applications, and contrast these power electronic circuits by their operation and control requirements;
  10. Design complex converters and analyse their operation through simulation using Matlab and Simulink.

Teaching details

Interactive lectures with in-class examples for all ILOs. Handouts contain all examples, and time is provided to complete all examples in class. Solutions are provided in class, and online after the lectures. Discussion and debate is encouraged.

Coursework allows students to generate the results presented in lectures, model most circuits presented, and is to be carried out during the course. A laboratory session is timetabled to provide tips and individual feedback on the coursework.

Assessment Details

Name: Terminal Exam

Exam, 2 hours (100%) (All ILOs)

Reading and References

Mohan, N., Undeland, T., & Robbins, W., Power Electronics: Converters, Application and Design, John Wiley & Sons, ISBN:0471226939