EEEN30090 Electrical Machines

Academic Year 2023/2024

1- Electrical Calculations 🔌:
Phasor analysis of single-phase and three-phase circuits. Delta (Δ) and star (Y) connections. Phase and line voltages. Active, reactive, apparent Power. Power factor. RMS value.

2- Fundamental magnetic circuits 🧲:
Magnetic characteristics of iron. B/H curves. Hysteresis, and eddy currents. Magnetic circuits and electrical equivalent circuits. Sinusoidal excitation (Faraday’s law). Energy Conversion Process.

3- Transformers 🔗:
Single-phase and 3-phase power transformers. Construction. Connection schemes. Equivalent circuit model. Performance. Voltage regulation. Efficiency. Parallel operation and load sharing. Transformer Applications.

4- Induction machines 🚎:
Construction. Fundamental analysis of distributed windings. Flux density. Flux, flux linkage, and inductance. Rotating magnetic fields. Development of equivalent circuit model. Torque-speed characteristic. Efficiency. Effects of rotor resistance. Speed control. Starting of induction motors. Induction generator. Applications in Wind energy systems. Voltage Source Inverter.

5- Synchronous machines 🚅:
Construction. Development of the equivalent circuit and use of same in analyzing of the machine connected to an infinite bus. Steady-state characteristics, and operational performance. Speed control. Applications in Wind energy systems. Voltage Source Inverter.

6- Special machines ⚙:
Brushless DC (BLDC) Motors (Construction and operating principle, stator, rotor, hall sensor, Voltage Source Inverter). Switched Reluctance Motors (SRM). Single-Phase Induction Motors. Servomotors. Stepper Motors. Applications in electric vehicle traction motors.

Show/hide contentOpenClose All

Curricular information is subject to change

Learning Outcomes:

Develop mathematical models for magnetic circuits where iron includes all or part of the circuit;
Analyse and synthesise magnetic circuits;
Develop mathematical models for the fundamental electrical machines including transformers, induction machines and synchronous machines;
Analyse the operation of the basic machine types electrically coupled to various circuits and systems and mechanically coupled to loads or prime movers.

Student Effort Hours: 
Student Effort Type Hours
Lectures

30
Laboratories

9
Specified Learning Activities

10
Autonomous Student Learning

70
Total

119
Approaches to Teaching and Learning:
task-based learning; lectures; lab work; case studies 
Requirements, Exclusions and Recommendations
Learning Requirements:

Please make sure that you have completed EEEN20090 - Electrical Energy Systems (or equivalents) prior to registering for this module. It is strongly recommended!


Module Requisites and Incompatibles
:
-

Additional Information:
Pre-requisites: one of the listed modules.


 
Assessment Strategy  
Description Timing Open Book Exam Component Scale Must Pass Component % of Final Grade
Lab Report: Report 3 on lab experiments Varies over the Trimester n/a Alternative linear conversion grade scale 40% No

10
Lab Report: Report 1 on lab experiments Varies over the Trimester n/a Alternative linear conversion grade scale 40% No

10
Lab Report: Report 2 on lab experiments Varies over the Trimester n/a Alternative linear conversion grade scale 40% No

10
Assignment: Assignment 1 Varies over the Trimester n/a Alternative linear conversion grade scale 40% No

5
Class Test: Class Test: Questions cover all material discussed to week 8. Week 9 n/a Standard conversion grade scale 40% No

10
Assignment: Assignment 2 Varies over the Trimester n/a Alternative linear conversion grade scale 40% No

5
Examination: Final exam 2 hour End of Trimester Exam No Standard conversion grade scale 40% No

50

Carry forward of passed components
Yes
 
Resit In Terminal Exam
Spring No
Please see Student Jargon Buster for more information about remediation types and timing. 
Feedback Strategy/Strategies

• Feedback individually to students, post-assessment
• Group/class feedback, post-assessment

How will my Feedback be Delivered?

Not yet recorded.

Name Role
Dr Nan Zhao Lecturer / Co-Lecturer
Ignacio Ponce Arancibia Tutor
Timetabling information is displayed only for guidance purposes, relates to the current Academic Year only and is subject to change.
 
Autumn
      
Lecture Offering 1 Week(s) - Autumn: All Weeks Fri 09:00 - 09:50
Lecture Offering 1 Week(s) - 1, 2, 3, 4 Mon 10:00 - 10:50
Lecture Offering 1 Week(s) - 5, 12 Mon 10:00 - 10:50
Lecture Offering 1 Week(s) - 6 Mon 10:00 - 10:50
Lecture Offering 1 Week(s) - 7, 9, 10, 11 Mon 10:00 - 10:50
Lecture Offering 1 Week(s) - Autumn: All Weeks Wed 10:00 - 10:50
Laboratory Offering 1 Week(s) - 5, 7, 9 Mon 15:00 - 17:50
Laboratory Offering 2 Week(s) - 5, 6, 10 Mon 15:00 - 17:50
Laboratory Offering 3 Week(s) - 6, 7, 11 Mon 15:00 - 17:50
Autumn