Course Name Code Semester T+U Hours Credit ECTS
Voltage Stability In Electrical Energy Systems EEM 605 0 3 + 0 3 6
Precondition Courses
Recommended Optional Courses
Course Language Turkish
Course Level Doctorate Degree
Course Type Optional
Course Coordinator Prof.Dr. MEHMET ALİ YALÇIN
Course Lecturers Prof.Dr. MEHMET ALİ YALÇIN,
Course Assistants Res.Asst. Baris CEVHER
Course Category
Course Objective Stability is the leading actual problem compared to the other problems encountered during generation and transmission of electrical energy. Addition to classical angle stability approach, voltage stability in major transmission systems has a continuously increasing importance. Aim of this course is to redound the required knowledge and skills to be able to make voltage stability analysis and prevention designs.
Course Content Introduction, Projections (schemes) of transmission systems, Load models, Static voltage stability, Examination of the factors that effect voltage stability, Critical values, Dynamic voltage stability, Dynamic load models, Dynamic load flow, Factors that effect the dynamic voltage stability, Voltage stability in “N” busbar(ed) systems, Actual improvements in voltage stability researches
# Course Learning Outcomes Teaching Methods Assessment Methods
1 Define and classify stability concepts in electrical power systems
2 Simulate and analyze of transmission systems and loads for static and dynamic voltage stability
3 Perform proper solution methods defining voltage instability problems
Week Course Topics Preliminary Preparation
1 Introduction, stability concepts, angle and voltage stability comparisons
2 Projections (schemes) of transmission systems, line, generator, transformer models
3 Load models; steady power, current, impedance loads
4 Static voltage stability, PV curves; obtain of these curves through analytical expressions, critical point and margins
5 Examination of the factors that effect voltage stability by the help of PV curves, single-double lines, power factor, compensation, line lengths, short circuit level
6 Obtaining and interpretation critical angle critical voltage and critical power statements
7 Dynamic voltage stability, fundamental models
8 Semi-static approaches
9 Dynamic load models; asynchronous motors, models, equations
10 Semi-static approaches; voltage sag scenarios
11 Algorithms in terms of dynamic voltage stability
12 Dynamic load flow
13 Factors that effect the dynamic voltage stability
14 Voltage stability in “N” busbar(ed) systems
Course Notes
Course Resources
Order Program Outcomes Level of Contribution
1 2 3 4 5
1 Ability; to Access to wide and deep information with scientific researches in the field of Engineering, evaluate, interpret knowledge and implement. X
2 Ability; To complete and implement “Limited or incomplete data” by using the scientific methods. To stick knowledge of different disciplinarians together. X
3 Ability; to consolidate engineering problems, develop proper method to solve and apply innovative solutions. X
4 Ability; To develop new and original ideas and methods, To develop new innovative solutions at design of system, component or process
5 Comprehensive information on modern techniques, methods and their borders which are being applied to engineering.
6 Ability; to design and apply analytical, modeling and experimental based research, analyze and interpret the faced complex issues during the design and apply process.
7 High level ability to define the required information, data and reach, assess.
8 Ability; To lead multi-disciplinary teams To take responsibility to define approaches for complex situations.
9 Systematic and clear verbal or written transfer of the process and results of studies at national and international environments X
10 Social, scientific and ethical values guarding adequacy at all professional activities and at the stage of data collection, interpretation, announcement.
11 Awareness at new and developing application of profession and ability to analyze and study on those applications.
12 Ability to interpret engineering application’s social and environmental dimensions and it’s compliance with the social environment.
Evaluation System
Semester Studies Contribution Rate
1. Ödev 10
2. Ödev 10
3. Ödev 10
4. Ödev 10
1. Ara Sınav 50
5. Ödev 10
Total 100
1. Yıl İçinin Başarıya 60
1. Final 40
Total 100
ECTS - Workload Activity Quantity Time (Hours) Total Workload (Hours)
Course Duration (Including the exam week: 16x Total course hours) 16 3 48
Hours for off-the-classroom study (Pre-study, practice) 16 2 32
Mid-terms 1 8 8
Assignment 5 10 50
Final examination 1 8 8
Total Workload 146
Total Workload / 25 (Hours) 5.84
dersAKTSKredisi 6