Academy of Technical and
Art Applied Studies Belgrade

Control of Power Quality Course code: 317106 | 8 ECTS credits

Basic information
Level of Studies:
Year of Study: 1
Semester: 2
Requirements: Knowledge of basic concepts of electrical engineering and electroenergetic engineering allows the successful monitoring of teachin
Goal: Acquiring theoretical and practical knowledge in the field of power quality.
Outcome: Students will be able to participate in projects of increasing the power quality.
Contents of the course
Theoretical instruction:
  1. Measures of power quality. Problems caused by bad power quality .
  2. Harmonic distortion of current and voltage. Standards for power quality .
  3. Harmonics of the current and voltage of the three-phase load connected to the triangle. Harmonics of direct, inverse and zero order.
  4. Effects of high harmonics of current and voltage on losses in the zero conductor and in the transformers.
  5. Selection of energy transformers which are sources to non-linear loads.
  6. Technical and economic motives for compensation of reactive power. Calculation of central compensation.
  7. Higher harmonics in industrial plants. three-phase power converters, devices that use electric arcs and saturated devices.
  8. Compensation of the reactive power of the asynchronous motor. Reactive power of an asynchronous motor in the function of sources. Individual (central) compensation of the reactive power of the asynchronous motor.
  9. Dynamic compensation of reactive power. Stressing the condenser battery due to high voltage. Stressing the capacitor battery due to higher harmonics.
  10. Parallel Resonance. Serial resonance. Transients of electricity and voltage when the capacitor battery is switched on. Power and voltage transceivers when switching off the capacitor battery.
  11. Solutions for suppression of high harmonics with according filters. Regular and parallel filters. Filters plants.
  12. Passive filters. Shunt passive filter. Serial passive filter. High-pass filters.
  13. Measurement of higher harmonics in the distribution network.
  14. Renewable sources and power quality. The impact of wind power on the power quality . Influence of photovoltaic systems on basic indicators of the power quality.
  15. Equipment for measuring electrical energy quality parameters.
Practical instruction (Problem solving sessions/Lab work/Practical training):
  1. Practical training program follows the lecture
Textbooks and References
  1. Vladimir Katić: Kvalitet električne energije-viši harmonici, Monografija, Edicija „Tehničke nauke – Monografije, Br.6, Fakultet tehničkih nauka u Novom Sadu, 2002.
  2. Miloje Kostić: Povećanje energetske efikasnosti elektromotora u pogonima, Elektrotehnički institut Nikola Tesla 2010.
  3. R. Dugan, M. McGranaghan, S. Santoso and H. Beaty, Electrical Power Systems Quality, McGraw-Hill, USA, 2004.
Number of active classes (weekly)
Lectures: 4
Practical classes: 3
Other types of classes: 0
Grading (maximum number of points: 100)
Pre-exam obligations
Points
activities during lectures
10
activities on practial excersises
10
seminary work
10
colloquium
10
Final exam
Points
Written exam
30
Oral exam
30