Author, institution: Aldas Stankevičius, Kauno University of Technology
Scientific Supervisor: Prof. Dr. Rimantas Pranas DEKSNYS (Kaunas University of Technology, Technological Sciences, Energetics and Power Engineering – 06T).
Science area, field: Technological Sciences, Energetics and Power Engineering – 06T
The Doctoral Dissertation is available at the libraries of Kaunas University of Technology (K. Donelaičio St. 20, Kaunas) and of Lithuanian Energy Institute (Breslaujos St. 3, Kaunas).
Dissertation defence board of Energetics and Power Engineering science field:
Dr. Egidijus URBONAVIČIUS (Lithuanian Energy Institute, Technological Sciences, Energetics and Power Engineering – 06T) – chairman;
Prof. Dr. Habil. Juozas AUGUTIS (Vytautas Magnus University, Technological Sciences, Energetics and Power Engineering – 06T);
Dr. Habil. Algirdas KALIATKA (Lithuanian Energy Institute, Technological Sciences, Energetics and Power Engineering – 06T);
Prof. Dr. Ričardas KRIKŠTOLAITIS (Vytautas Magnus University, Technological Sciences, Energetics and Power Engineering – 06T);
Prof. Dr. Matti LEHTONEN (Aalto University, Technological Sciences, Energetics and Power Engineering – 06T).
Annotation:
In the situation of increasing number of wind power plants, changeable and only partially predicted capacity of them and generation of electricity, electrical power systems experience some problems encumbering the assurance of a permanent balance between the energy generation and consumption in the system. Therefore it is necessary to have available operative power reserves in the electrical power system to ensure the reliable operation of the system.
Techniques of power change parameter study and prediction in wind power plants are composed in this research work to solve the related problems. These techniques enable to determine and predict more precisely the power of wind farms. Models of small electrical power systems are created to study of wind power plant gross output and energy balancing possibilities in accordance with the demand of heat and electricity consumers. By use the models presented wind farm integrated powers of the small electrical power systems and necessary for balancing powers of combined heat and power plants, boiler houses and heat pumps, as well as capacities of heat energy accumulators and solar farms balanced powers are determined. The proposed model of wind power plant power balancing is used to study the possibilities to control the short time power deviations and variations of frequency in the small electrical power system.
Scientific research of the author proves the possibility of integration the wind power plant capacities into electrical power system and possibility to increase the energy security of the system without reducing the transfer capability of the electrical transmission network.
