Semester

Semester 2, 2018

• Nirmal Nair (director, coordinator)
• Akshya Swain

Lecturers:

Nirmal Nair (NN) Course Director
09 923 9523, Rm 401-709, Bldg 401, City Campus, n.nair@auckland.ac.nz

Akshya Swain (AS)
09 923 9752, Rm 903-428, Bldg 903, Newmarket Campus, a.swain@auckland.ac.nz

Laboratory and Tutorial Support

Tutorial Support: Mohammad Javad Sanjari, mj.sanjari@auckland.ac.nz

Technical Officer: Mohammed Aldarwesh, m.aldarwesh@auckland.ac.nz

GTAs: Duncan Maina, Ebad Rehman, Samad Shirzadi and Sainbold Saranchimeg

Introduces students to three-phase electric machines and power system components. Covers theory, modelling and practical aspects for synchronous machines, induction machines, transformer connections, transmission lines and substation components. Prerequisite: ELECTENG 204

Further notes

Course outline:

1. Quick Background Review (NN)
Review of Phasors, 3-phase, Magnetic fields & circuits, AC excitation of inductor, equivalent circuit of 1-ph Transformer. (Not to be assessed)

2. Per-unit system & 3-phase Transformers (NN)
Per-unit system; three-phase transformer connections

3. Three-phase Synchronous Machines (NN)
Construction & induced voltage in AC machines; Rotating MMF in AC machines; Leakage fluxes; Equivalent circuit for Synchronous machine; Characteristics: Open & Short circuit, Power-angle, Steady-state operating curves - Compounding, Capability & V curves; Paralleling of Synchronous generators; Synchronous motor start-up methods; Permanent-magnet AC motors

4. Three-phase Induction Machines (AS)
Introduction to polyphase induction machine theory; Equivalent circuit; Torque & Torque-speed characteristics; Parameter determination; Rotor resistance; Starting methods & speed control; Practical aspects; Induction generator principle & characteristics; Doubly-fed induction generators.

5. Transmission Line (AS)
Transmission line parameters; Transmission line models; Performance of transmission lines; HVDC lines

6. Substation Engineering (NN)
Rating, technology & functionality of substation switching equipments- Circuit Breakers, Isolators, Contactors, Surge arrestors, Capacitor banks etc.; Current Transformer (CT) & Potential/Voltage Transformer (PT); Typical sub-station layout.

Textbooks:

Review, Transformers, Per-unit, Synchronous Machines & Induction Machines
Prescribed Text:
Fitzgerald, Kingsley & Umans “Electrical Machinery” 6th Edition, McGraw Hill, 2003
Other Topics
Reference Text/Material:
1. John J Grainger and William D Stevenson: “Power Systems Analysis”,
McGraw Hill, 1994.
2. M. Godoy Simões and Felix A. Farret “Renewable energy systems: design and analysis with induction generators” CRC Press, 2004
3. Class Handouts

Assessment:
The basis for overall assessment is 66% final examination, 34% on-course assessment which consists of two tests (15% each) and 2 labs (4%)

Test 1 - Teaching week 6: Wednesday, 22th August: 12 noon - 1 pm
Test 2 - Teaching week 10: Wednesday, 3rd October: 12 noon - 1 pm

Laboratory:

There will be two compulsory lab sessions each of 2 hours. The laboratory sessions involve experiments on synchronous and induction machines. The lab sessions are to facilitate understanding of the lecture material and get a feel for practical power system components. There could be questions in exam based on the lab coverage.

The lab sessions are scheduled during the 5th and 9th teaching weeks. Make your lab slot booking online. Your laboratory journal record must be signed off by the lab GTA at the end of the lab session to indicate satisfactory completion: failure to meet this requirement will result in a failing DNC grade for the course as a whole. Any DNC grade still uncorrected on 19th October 2018 will be taken as the final grade for the year. Please note that under department rules only one lab re-run will be permitted: see the document Guide to laboratories for conditions that apply for this permission. This document is made available via Canvas.

Restricted Calculator (RC) Faculty policy will be enforced during the tests and exam.
The University of Auckland will not tolerate cheating, or assisting others to cheat, and views cheating in coursework as a serious offence. The work that a student submits for grading must be the student's own work, reflecting his or her learning.

Students are urged to discuss privately any impairment-related requirements face-to-face and/or in written form with the course convenor/lecturer and/or tutor.

No description given

The University of Auckland will not tolerate cheating, or assisting others to cheat, and views cheating in coursework as a serious academic offence. The work that a student submits for grading must be the student's own work, reflecting his or her learning. Where work from other sources is used, it must be properly acknowledged and referenced. This requirement also applies to sources on the world-wide web. A student's assessed work may be reviewed against electronic source material using computerised detection mechanisms. Upon reasonable request, students may be required to provide an electronic version of their work for computerised review.

All students enrolled at the University of Auckland are required to complete a compulsory Academic Integrity course, usually in their first semester/year of enrolment. The University of Auckland’s full guidelines on procedures and penalties for academic dishonesty are available here.

Positive feedback from student in 2017. The same arrangement will be followed in 2018.