Course Details

1. Identify the importance of power system control and stability
2. Associate the physical aspects of different categories of power system stability phenomena
3. Identify factors causing different stability problems and analyse techniques used to deal with stability problems
4. Investigate methods for power system stability control
5. Analyse synchronous generator characteristics and investigate simulation models in relation to power system stability studies
6. Investigate transients and small signal analysis problems

Introduction to Power System Stability: Requirements of a reliable electrical power service, Consequences to system stability after a disturbance on the system, Methods of simulation

Control of Power and Frequency: power and frequency control, The turbine governor, division of load between generators, Power-frequency characteristic of an interconnected system, small capacity systems

Control of Voltage and Reactive Power: voltage control, reactive power control, Generation and absorption of reactive power, Relationship between voltage, power and reactive power, tap-changing transformers, reactive power injection, Voltage collapse and consequences, Voltage control in distribution networks, long transmission lines

Power System stability: The stability problem, Rotor dynamics, swing equation, power angle equation, Synchronizing power coefficients, Equal area criterion of stability, Multi-machine stability studies, Step by step procedure of the swing curve

Transient and Small Signal Analysis: rotor angle, Consideration of time, Computer calculation methods for transient stability analysis, Factors affecting transient stability

• Power System Analysis, Grainger J., 1st Edition, McGraw Hill,1994
• Power System Control and Stability, Anderson P. ,Fouad A., Second Edition, Wiley, 2002

• Power System Dynamics: Stability and Control, J. Machowski, J. Bialek, J.Bumby, WileyBlackwell, 2ND, 2008
• Electrical Power System Essentials, Pieter Schavemaker, Lou van der Sluis, Wiley, 1st, 2008
• Power Systems Modelling and Fault Analysis, N. Tleis, Newnes, 2008
• Electrical Machinery Fundamentals, S. Chapman, Prentice Hall, 2005
• Electrical Power Systems Quality, Dugan R.C., Santoso S, McGraw-Hill Professional, 2ND, 2002
• Power Systems Electromagnetic Transients Simulation, Arrillaga, J., Watson, N, Institution of Engineering and Technology, 1st, 2002
• Electric Power Systems, B. M. Weedy, B.J. Cory, Fourth Edition, Wiley, 1998
• Power System Stability and Control, Prabha Kundur, McGraw Hill, 1994
• Power System Dynamics and Stability, Sauer P. and Pai M., Prentice Hall, first edition, 1997
• Elements of Power System Analysis, Stevenson, W.D. , McGraw Hill Inc., 4th Edition, 1982
• Basic Electric Machines, by Vincent Del Toro, Prentice Hall, 1990

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 and can also be downloaded from the lecturer’s webpage. 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. Further literature search is encouraged by assigning students to identify a specific problem related to some issue, gather relevant scientific information about how others have addressed the problem and report this information in written or orally.

Students are assessed continuously and their knowledge is checked through tests with their assessment weight, date and time being set at the beginning of the semester via the course outline.

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 summative and is assured to comply with the subject’s expected learning outcomes and the quality of the course.