Course Details

1. Describe the structure of power systems, source of electrical energy, the one line impedance diagram, per unit systems revision, representation of loads and complex power.
2. Analyse short, medium and long transmission lines, interpretation of the line equations, power flow through a transmission line, equivalent circuit representation
3. Calculate Network model formulation, ybus matrix, gauss-seidel method. Calculate the output of load flow methods.
4. Describe the 'a' operator, symmetrical component transformation, sequence impedances and sequence networks, explain construction of sequence networks.
5. Calculate Symmetrical fault, unsymmetrical fault, analyse bus impedance matrix method for analysis of unsymmetrical fault.

Overview of power system analysis: general operational characteristics of power systems. Introduction to the concepts to follow.  

Representation of power transmission lines: mathematical development of the formulation of short, medium and long transmission lines. Application of formulas for voltage, current or power factor identification purposes.

Fault analysis: mathematical analysis of symmetrical and unsymmetrical faults. The use of bus impedance matrix method for asymmetrical fault analysis.

'A' operator, symmetrical component transformation, sequence impedances and sequence networks, construction of sequence networks

Network model formulation: y-bus matrix, gauss-seidel method for analysis of interconnected systems (mesh).

• Elements of power system analysis, William D, Stevenson Jr, 4th ed. Mc Graw-Hill, 2002

• Power system Analysis, John J. Grainger and William D. Stevenson, Jr., Mc Graw-Hill, 1994.
• E. Hughes, Electrical technology , Longman, 1995
• Power system Analysis Second Edition, Hadi Saadat, McGraw-Hill, 2002Australia.

Students are taught the course through lectures (3 hours per week) in classrooms or lectures theatres, by means of traditional tools or using computer demonstration.

Auditory exercises, where examples regarding matter represented at the lectures, are solved and further, questions related to particular open-ended topic issues are compiled by the students and answered, during the lecture or assigned as homework.

Topic notes are compiled by students, during the lecture which serve to cover the main issues under consideration. Students are also advised to use the subject’s textbook or reference books for further reading and practice in solving related exercises. Tutorial problems are also submitted as homework and these are solved during lectures or privately during lecturer’s office hours.

Students are prepared for final exam, by revision on the matter taught, problem solving and concept testing and are also trained to be able to deal with time constraints and revision timetable. The final assessment of the students is formative and is assured to comply with the subject’s expected learning outcomes and the quality of the course.