University of Ljubljana

Brief Description

University of Ljubljana (UL) is the oldest and largest higher education and scientific research institution in Slovenia. The University, with its rich tradition, was founded in 1919. It has more than 40.000 undergraduate and postgraduate students and employs approximately 5.600 higher education teachers, researchers, assistants and administrative staff in 23 faculties and three arts academies.

The University of Ljubljana is renowned for its quality social and natural sciences and technical study programmes, structured in accordance with the Bologna Declaration. Our projects keep pace with the latest developments in the areas of arts, sciences and technology at home and abroad.
The University of Ljubljana is listed amongst the top 500 universities in the world according to the ARWU Shanghai, Times THES-QS and WEBOMETRICS rankings. It is also the central and largest research institution in Slovenia with 30 percent of all registered researchers.
The Faculty of Electrical Engineering (FE) is an educational, research and development institution covering the entire field of electrical engineering. The Faculty consists of departments of Fundamentals of Electrical Engineering, Mathematics and Physics, Power Systems and Devices, Electronics, Measurement and Robotics, Microelectronic Technology, Mechatronics, System, Control and Cybernetics Department and Biomedical Engineering. The department of Power Systems and Devices conducts research within 5 laboratories: Laboratory for Energy Policy, Laboratory of Electric Power Supply, Laboratory of Electricity Networks and Devices, Laboratory of Lighting and Photometry and Laboratory of Power Systems.
The Laboratory of Electricity Networks and Devices and the Laboratory of Power Systems specialize in power systems research. The research and development areas of the laboratories are Smart Grids (operation of networks with high penetration of distributed generation, electrical vehicles, flexible loads…), compensation devices (passive and active compensation devices), power quality (sources, propagation and mitigation of disturbances) and reliability of power systems (reliability of power systems and power plants). Our main competences are especially modelling and analysis of power systems operation, power-system optimisation, modelling and analysis of power-system devices and control of power converters. In the field of Smart Grids, we are dealing with subjects like distribution-network state estimation, forecast, voltage control, influence of distributed generation and electrical vehicles on network operation and active user participation in network operation (demand response). The topic of Smart Grids is strongly represented also within our project work, including European projects, industrial projects (work for companies in the ICT sector and companies providing products and solutions for distribution systems), studies for DSO’s and national projects, co-funded by the state. We have also participated in the preparation of the Slovenian national program for Smart Grids, providing a clear pathway for the development of distribution networks in Slovenia and including a cost-benefit analysis of the implementation of Smart Grids.

Main tasks and responsibilities within the project

The main contribution of the UL is the development of Power Module within the Decision Support System (DSS), which will be used to evaluate the impact of electrical vehicles on the electrical grid at different penetration levels of EV. The model will be developed as a surrogated model that does not require sophisticated power grid modelling procedures and collection of detailed grid topology data, which is always a very challenging and time-consuming task. This will significantly increase the practical usability of the DSS System at different levels.
Other contributions of UL are in:
˗ the development of stochastic EV Model that will consider the EV specific characteristics (state of charge, range capacity, battery capacity);
˗ the development of EV Charging Model that will represent different CP technologies in terms of power capacity, charging time, waiting time before charging, charging behaviour.
˗ the development of optimization techniques and models training.
The competences of the UL are related to the work carried out in the frame of PhD research in the fields of power grid modelling, planning and operation.