Course syllabus

Course-PM

ENM051 ENM051 Power system analysis and control lp1 HT20 (7.5 hp)

Course is offered by the department of Electrical Engineering

Contact details

Course purpose

The main aim of this course is that students should develop and demonstrate their knowledge and capability to model major power system components in order to analyze and control the voltage, frequency and power flow of a simple power system under steady-state and dynamic conditions using theoretical methods, simulation tools and laboratory setups.

Schedule

TimeEdit

Course literature

The following book is the main textbook used throughout the course.

• Hadi Saadat, Power System Analysis, 3^rd Edition, PSA Publishing, 2010
• Prabha Kundur, Power System Stability and Control, McGraw-Hill, 1993

 The textbook is available at Cremona (www.chalmersstore.se) at the Student Union. The textbook contains essential materials for the course. It should, however, not be viewed as the only source of information needed to prepare for the examination. Additional materials will be provided during lectures and/or be made available on the course homepage.

Course design

This course consists of scheduled lectures (19x2 hours), tutorials (13x2 hours), project consultation (8x2 hours), and laboratory work (3x1 hour) during 8 study-weeks.

Lectures: Lectures usually take place on Tuesdays (13:15-15:00), Thursdays (13:15-15:00), Fridays (13:15-15:00). There will however be some changes due to teachers’ unavailability. Check the schedule in Time-Edit for updated information in both time schedule and location: https://student.portal.chalmers.se/en/chalmersstudies/courseinformation/scedule_group_room/Pages/Schedule.aspx. Topics treated in lectures are given in the table above. Numerical examples will be given in the lectures to help clarify the theory wherever necessary. The lecture will be done online in Autumn 2020. 

Tutorials: Numerical exercises will be given during tutorial sessions and in your home-work. Tutorials normally take place on Tuesdays (15:15-17:00) and Thursdays (15:15-17:00). There will however be some changes due to teachers’ unavailability. Check the schedule in Time-Edit for updated information.

Project Work: In addition to tutorial exercises, students are expected to work on a computer-based project during 8 weeks starting from the first week of the course. The project will be carried out in a group of 3-4 students. In the project, students will analyze a practical power system using the power system software PSS/E and MATLAB/SIMULINK. The software is available in Windows based PC and its student version (PSS/E Xplore v34.3.2) can be downloaded for free from Siemens at https://new.siemens.com/global/en/products/energy/services/transmission-distribution-smart-grid/consulting-and-planning/pss-software/psse-xplore-order-form.html. Download using Internet Explorer and install it in your computer during the 1^st study week. You are free to choose to work at your own time. Seven occasions for project consultation will be given in the computer labs (check Timeedit for updated information on computer rooms) in the E-building, in two separate sessions. Session 1 usually takes place on Mondays from 10:00 to 11:45, Session 2 usually on Mondays from 13:15 to 15:00. Book your session at the course homepage. The detailed description of the project will be provided at the start of the project. The project report is compulsory and is marked for your final grade.

• Long transmission line laboratory demonstration: There will be a 45 min laboratory demonstration on long AC transmission line operations. The demonstration aims at showing some typical loading conditions of long transmission lines. The demonstration will take place during study week 4. Each group will need to go for one time only. Book your time on the course homepage. The participation is compulsory.
• Voltage control laboratory: This lab focuses on the excitation control of the synchronous generator. The participation is compulsory.
• Frequency control laboratory: This lab focuses on the speed and active power control of the synchronous generator. The participation is compulsory.

Changes made since the last occasion

• Lectures will be given online following the policy at Chalmers for handling corona situation. Tutorials, PSS/E projects and lab exercises will be carried in physical form as before.

Learning objectives and syllabus

Learning objectives:

1. Perform basic state evaluation of a small network using phasor-diagram, loss summation and two-port equations methods, and explain basic voltage control principles. 

Link to the syllabus on Studieportalen.

Study plan

Examination form

Trial exam: A trial exam will be held in the 4^th week of the study period. The trial exam will give maximum 10% to be added to the final score and a minimum of 0. The trial exam is NOT compulsory but highly recommended.

Examination: Open-book examinations in Autumn 2020. The examination is based on the project work and the “closed-book” written exam. The distribution of the final grade will be: i) project (20%), and ii) exam (80%). You will have to pass both in order to pass the course. The participation in all the laboratory demonstration and exercises is compulsory in order to pass the course.  The final grade will be 5, 4, 3 and U (fail). For a total of 30 points, to get a 5, you need 24 points or above (80%), and to get a 4, you need 18 points or above (60%), and to get a 3, you need 12 points or above (40%).

For example, if you get 4% in the trial exam, 80 points (out of 100 points) in the project, and 18 points (out of 30 points) in the final exam, you final point will be P= 30 * 4% + (80 * 0.3) *20% + 17 * 80% = 19.6, and this gives you a grade of 4. The maximum point one can get is P_max = 30 * 10% + (100 * 0.3) * 20% + 30 * 80% = 33.

Calculator: only Chalmers approved calculators can be used in examination: Casio FX82…, Texas TI30…, Sharp ELW531…