Active distribution networks

Course description

Consequences of growing environmental concern, general lack of energy resources in western Europe, availability of new technologies for production of electrical energy, penetration of distributed energy resources – DER in distribution networks.

Gradual transition of classical passive distribution network into an active network with resources on the consumption side, specification of the concept of an active distribution network. Overview of distributed energy resources, interconnection requirements and assessment of potential in Slovenia. The influence of distributed energy resources on the operation of a distribution network: voltage profile, power flows, reactive power, power quality, protection, control, maintenance and planning.

Key technologies enabling the operation of an active distribution network: energy resources with control capabilities, energy storage systems, modern compensation devices, advanced information and communication technologies.

Course is carried out on study programme

Objectives and competences

The student will learn the impact of distributed generation on the design and operation of distribution networks and will acquire the basic knowledge of Smart Grids technologies and concepts.

Learning and teaching methods

Seminar, consultations.

Intended learning outcomes

Knowledge and understanding:

The student will understand the impact of distributed generation on distribution network operation.


Practical application in network design and interconnection of distributed generation.


Understanding the connection between new technologies and structure of the power network.

Transferable skills:

Knowledge of design and operation of distribution network.

Reference nosilca

Kolenc M, Papič I, Blažič B (2012) Minimization of losses in smart grids using coordinated voltage control. Energies, 10:3768-3787

Maksić M, Papič I (2012) Calculating flicker propagation in a meshed high voltage network with interharmonics and representative voltage samples. International journal of electrical power & energy systems 1:179-187

Božiček A, Blažič B, Papič I (2011) Performance evaluation of a time-optimal current controller for a voltage-source converter and comparison with a hysteresis controller. IEEE transactions on power delivery 2:859-868

Božiček A, Blažič , Papič I (2010) Time optimal current control with constant switching frequency for STATCOM. Electric power systems research, 8:925-934

Maksić M, Papič I (2010) The calculation of flicker propagation in part of the Slovenian transmission network. International journal of electrical power&energy systems 9:1037-1048

Study materials

Papič I et al. (2012) Program razvoja pametnih omrežij v Sloveniji, 1. del Distribucijsko omrežje. Fakulteta za elektrotehniko – Elektroinštitut Milan Vidmar, Ljubljana

EU Commission (2009-2014) Metamorphosis of Power Distribution: System Services from Photovoltaics – MetaPV. The seventh Framework Programme, Brussels

EU Commission (2006) Vision and Strategy for European Electricity Networks of the Future. European SmartGrids Technology Platform, Brussels

Jenkins N, Allan R, Crossley P, Kirschen D, Strbac G (2000) Embedded generation. IEE, London


Bodi na tekočem

Univerza v Ljubljani, Fakulteta za elektrotehniko, Tržaška cesta 25, 1000 Ljubljana

E: T:  01 4768 411