Unit Outline

The aim of this unit is to provide students expertise in the analysis of power system dynamics and stability for practical applications. The unit covers an introduction to the concept of power system stability, representation of synchronous machines and AC transmission modelling in stability studies, static and dynamic load models, steam and hydro turbines and governing systems, HVDC systems and their representation in stability studies, small-signal stability concept, eigenvalues and eigenvectors, small-signal stability of a single machine and multimachine systems, transient stability concept, simulation of power system dynamic response, direct method of transient stability analysis, voltage stability and voltage collapse, wide-area monitoring, and impact of wind and solar integration on power system dynamics. It is highly recommended for students to have a background in power systems.

Intended Learning Outcomes

As per the Assessment and Results Policy 1.3, your results will reflect your achievement against specified learning outcomes.

On completion of this unit, you will be able to:


1.	Determine small-signal stability of power systems using eigenvalues and eigenvectors.
2.	Evaluate power system dynamic response in systems with increasing renewable generation using appropriate commercial software.
3.	Evaluate transient stability of a power system using the equal area criterion.
4.	Investigate voltage stability and conditions for voltage collapse.
5.	Evaluate the impact of renewable energy integration by simulating power system dynamics.

Requisites


REQUISITE TYPE	REQUISITES
Pre-requisite	ENG767 Power Systems 1

Alterations as a result of student feedback

How will I be Assessed?

For more detailed assessment information please see MyLO.

Assessment schedule


ASSESSMENT TASK #	ASSESSMENT TASK NAME	DATE DUE	WEIGHT	LINKS TO INTENDED LEARNING OUTCOMES
Assessment Task 1:	Project	Week 13	40 %	LO1, LO2, LO3, LO4, LO5
Assessment Task 2:	Labs	Refer to Assessment Description	20 %	LO2, LO4, LO5
Assessment Task 3:	Exam	Exam Period	40 %	LO1, LO3, LO4

Assessment details

Assessment Task 1: Project

Task Description:

Investigate the impacts of different factors and conditions on power system stability for systems with increasing renewable energy. Students will utilise Matlab simulation tools and commercial software applications in conducting this project. Students will present their findings in pairs (20% of grade) during week 13, and write an individual report (80% of grade) due in week 13.

Task Length:

20 page (figures are not included) report, 15 minute presentation

Due Date:

Week 13

Weight:

40 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Calculate eigenvalues and eigenvectors for a given power system condition	LO1
2	Determine whether a system is stable or not using eigenvalues and eigenvectors	LO1
3	Run simulations and assess the power system stability under a given set of power system conditions for systems with increasing renewable energy	LO2
4	Determine voltage stability criteria for a power system and explain when voltage collapse may occur and how to prevent such a condition in power systems	LO4
5	Simulate and evaluate a given power system with renewable energy penetration up to 50%, including the impact of increasing wind power penetration	LO5
6	Explain how the equal area criterion is used in transient stability analysis of a large power system	LO3

Assessment Task 2: Labs

Task Description:

Simulation lab assignment (x6).

Labs will be delivered from weeks 6 to 12. Students will submit reports within 1 week after the lab.

Task Length:

3 hour lab and 5 page report

Due Date:

Refer to Assessment Description

Weight:

20 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Input data for a given power system	LO2
2	Run simulations and assess the power system stability under a given set of power system conditions	LO2
3	Determine voltage stability criteria for a power system and explain when voltage collapse may occur and how to prevent such a condition in power systems	LO4
4	Simulate and assess a given power system with renewable energy penetration	LO5

Assessment Task 3: Exam

Task Description:

A three hour final exam covering all topics included in the lecture and tutorial sessions.

Task Length:

3 hours

Due Date:

Exam Period

Weight:

40 %

CRITERION #

CRITERION

MEASURES INTENDED

LEARNING OUTCOME(S)


1	Calculate eigenvalues and eigenvectors for a given power system condition	LO1
2	Determine whether a system is stable or not using eigenvalues and eigenvectors	LO1
3	Explain the equal area criterion on a simple example	LO3
4	Evaluate how the equal area criterion is used in transient stability analysis of a large power system	LO3
5	Determine voltage stability criteria for a power system	LO4
6	Explain when voltage collapse may occur and how to prevent such a condition in power systems	LO4

How your final result is determined

To pass this unit, you need to demonstrate your attainment of each of the Intended Learning Outcomes, achieve a final unit grade of 50% or greater, and pass any hurdle tasks.

Submission of assignments

Where practicable, assignments should be submitted to an assignment submission folder in MYLO. You must submit assignments by the due date or receive a penalty (unless an extension of time has been approved by the Unit Coordinator). Students submitting any assignment in hard copy, or because of a practicum finalisation, must attach a student cover sheet and signed declaration for the submission to be accepted for marking.

Academic integrity

Academic integrity is about acting responsibly, honestly, ethically, and collegially when using, producing, and communicating information with other students and staff members.

In written work, you must correctly reference the work of others to maintain academic integrity. To find out the referencing style for this unit, see the assessment information in the MyLO site, or contact your teaching staff. For more detail about Academic Integrity, see Important Guidelines & Support.

Requests for extensions

If you are unable to submit an assessment task by the due date, you should apply for an extension.

A request for an extension should first be discussed with your Unit Coordinator or teaching support team where possible. A request for an extension must be submitted by the assessment due date, except where you can provide evidence it was not possible to do so. Typically, an application for an extension will be supported by documentary evidence: however, where it is not possible for you to provide evidence please contact your Unit Coordinator.

The Unit Coordinator must notify you of the outcome of an extension request within 3 working days of receiving the request.

Late penalties

Assignments submitted after the deadline will receive a late penalty of 5% of the original available mark for each calendar day (or part day) that the assignment is late. Late submissions will not be accepted more than 10 calendar days after the due date, or after assignments have been returned to other students on a scheduled date, whichever occurs first. Further information on Late Penalties can be found on the Assessments and Results Procedure.

Review of results and appeals

You are entitled to ask for a review of the marking and grading of your assessment task if there is an irregularity in the marking standards or an error in the process for determining the outcome of an assessment. Details on how to request a review of a mark for an assignment are outlined in the Review and Appeal of Academic Decisions Procedure.