Module Catalogue 2024/25

Pre Requisite Comment

Electrical/Electronic Engineering first degree or other equivalent qualification

Co Requisite Comment

N/A

Aims

Aim of this module is to model electric machines and develop good understanding of various electrical machines and generators dynamics. Completion of the steady state analysis of electrical machines and generators and an extension to their dynamic performance.

Outline Of Syllabus

•       Completion of the steady state analysis of electrical machines and generators and an extension to their dynamic performance.
•       Principles of generalised machine theory; rotating and stationary reference frames; 3-to-2 phase transformations; 3-to-dq axis transformations; Circuit analysis of electrical machines
•       Salient pole Synchronous Machine -dq approach
•       Parks equations and two-axis equivalent circuits
•       Induction machines
•       Transient behaviour of machines
•       Electrical transients effects in ac machines using a sudden symmetrical short circuit in a synchronous machine as an example; transient and sub-transient reactances and time constants, engineering importance; discussion of behaviour in physical terms, with reference to equivalent circuits.
•       Electromechanical transients in ac machines, natural oscillation frequencies
•       Reluctance Machines, special machines and their applications
•       The design of modern electrical drives, with consideration of the machine, power electronics and control requirements. Comparisons are made between drive types and typical application considered.

Intended Knowledge Outcomes

At the end of the module students will be able to:

•       Demonstrate and discuss the steady state and transient performance of all common machine types.
•       Compare and discuss the different types of drives and their control requirements.
•       Know the way to synthesise and research current challenges in electrical machine topologies and suggest appropriate solutions.

Intended Skill Outcomes

At the end of the module students will develop the following:

•       Ability to fully model and calculate the steady state performance of all common machines types.
•       Problem solving skills to apply and analyse transient modelling of machines and generators to solve problems.
•       Research skills to review recent research articles and recommend possible solutions.
•       Academic writing skills through the write-up of a short report through their coursework.

Teaching Rationale And Relationship

Lectures provide the core material as well as guidance for further reading. Tutorial questions are given to assist the learning process. Tutorial questions offer the opportunity for practice in analysis and synthesis and where necessary more direct tuition can be offered to smaller student groups.
Students undertake guided independent study, which is introduced and discussed in 12 hrs of seminar work.

Assessment Rationale And Relationship

The examination aims to test the students' core knowledge and understanding of machine design principles including making suitable assumptions, simplifications and mathematical analysis. The case study involves students to complete a critical review of recent research articles and using the acquired knowledge to find possible solutions for the challenges discussed in the articles. Coursework will allow the students to gain a deeper understanding of the characteristics and principles of the electrical machines being studied, and an ability to link the mathematical models developed to the electrical machine operation.

General Notes

N/A