An advanced control algorithm for the optimal control of the static compensator is the main subject and scientific contribution of the dissertation of Ambrož Božiček. The control algorithm is developed based on detailed knowledge of the voltage sourced converter. Performance optimization, which is an advantage over others already known predictive control algorithms, is based on the mathematical modelling of the device and prediction of variations of the reference system parameters.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 8420180Phase shifting transformer (PST) Divača considerably impacts power flow situation in Europe, as well as in power station. As it is manufactured in the form of two units, there dilemmas existed regarding its operation. In the study the operating states and acceptable operation modes have been considered and the operating procedures proposed. They are required when putting the device into operation. PST Divača is connected since middle 2010 and till now it met all expectations. According to the ELES director it is the most profitable investment in Slovenian power system for decades.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 7881300The study includes a detalied cost-benefit analysis of the planned DC transmission line between Slovenia and Italy. The analysis includes the effects of electricity prices, and the financial impact on the Slovenian transmission system operator.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 9649492Secondary voltage and reactive power control using artificial neural networks (ANN) aims at setting the reference values for the automatic voltage controllers in the EPS. It is based on autonomous local controllers that use local information in the controlled node, and for its operation does not need a supervisory, tertiary voltage control signal. The patent envisions an improved definition of the optimal ANN topology, faster ANN learning and faster convergence.
F.33 Slovenian patent
COBISS.SI-ID: 8239956In his doctoral thesis Uroš Kerin describes methods for dynamic security assessment of electric power systems. Methods are based on calculations of indices, taking into account physical and operational limits of power systems. As input data simulation results or measured data can be used. Proposed indices are combined into single composite index which helps operators to monitor the power system. The results described in the thesis, served as the basis for the development of the dynamic security assessment tool "SiGuard DSA" by Siemens AG.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 7765844