2019/20 Undergraduate Module Catalogue

ELEC3565 Electric Machines

10 creditsClass Size: 100

Module manager: Dr. Ben Chong
Email: b.chong@leeds.ac.uk

Taught: Semester 1 (Sep to Jan) View Timetable

Year running 2019/20

Module replaces

ELEC3560 - Electric Drives

This module is not approved as a discovery module

Module summary

Electric machines play a principal role in our lives. They are electromechanical energy converters able to convert electric to mechanical power and vice versa. As generators, they produce almost all electric energy on Earth (conventional and renewable). As loads, they consume more than 60& of all electric energy produced with applications in transportation (e.g., electric vehicles, trains, personal electric transportation), in automation/robotics (linear and rotational movement), and in everyday life (fans, pumps, washing machines, etc). This module introduces students to the basic principles of electromechanical conversion and focuses on the most common devices that an electrical engineer will encounter: DC and AC electric machines.

Objectives

This module gives students an understanding of the operation of electric machines, starting from basic electromechanical conversion principles to their numerous applications and visiting different machine types. It provides students with the necessary skills to select, size, and analyse appropriate electric machines for various applications.

Learning outcomes
On completion of this module, students should be able to:

- understand and explain the basic relationships between voltage, current, flux, and EMF; perform computations with simple magnetic circuits; understand and explain the basic principles behind electromechanical energy conversion;
- understand the operation of DC machines both in generator and motor operation; draw the equivalent circuits and perform basic calculations concerning the speed, torque, power, etc; be able to analyse their steady-state behaviour and estimate parameters;
- understand the operation of AC machines both in generator and motor operation; be able to explain qualitatively and quantitatively the differences between synchronous and asynchronous AC machines; draw the equivalent circuits and perform basic calculations concerning the speed, torque, power, etc; be able to analyse their steady-state behaviour and estimate parameters;
- provide application examples for different types of electric machines.

Syllabus

- Magnetic circuits and magnetic materials;
- Electromechanical energy conversion principles and rotating machines;
- DC machines and applications;
- AC machines (synchronous and asynchronous) and applications.

Teaching methods

Delivery type	Number	Length hours	Student hours
Example Class	5	1.00	5.00
Laboratory	1	2.00	2.00
Lecture	20	1.00	20.00
Private study hours			73.00
Total Contact hours			27.00
Total hours (100hr per 10 credits)			100.00

Private study

Students are expected to use private study time to consolidate the material covered in lectures and to prepare for examples classes and practical classes.

Opportunities for Formative Feedback

Formative feedback will mainly be through the worked examples that students will undertake in the example classes.

Methods of assessment

Coursework

Assessment type	Notes	% of formal assessment
In-course Assessment	In-Semester Test	20.00
Report	Laboratory report	20.00
Total percentage (Assessment Coursework)		40.00

The re-sit format for this module will follow the policy for all standard ELEC modules and will require students to re-sit the final written examination, as described in the CoPA.

Exams

Exam type	Exam duration	% of formal assessment
Standard exam (closed essays, MCQs etc)	2 hr 00 mins	60.00
Total percentage (Assessment Exams)		60.00

The re-sit format for this module will follow the policy for all standard ELEC modules and will require students to re-sit the final written examination, as described in the CoPA.

Reading list

There is no reading list for this module

Last updated: 30/04/2019

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