Analysis of VCB impact on 36kV wind farm cable grid

In this project it is investigated how the high frequency transients (HF) in a cable grid influence connected equipment. Both generation and propagation as well as protection is studied. Measurements in Stor-Rotliden’s wind farm where transformer failures occurred are planned in the project. In comparison with the previous work in this field, the focus here is on the design of grounding systems (GS), especially their HF characteristics. Component models derived in a previous Vindforsk project are improved and the results are generalized so that they can be applied to components of different sizes. Analysis of different GS is performed and the importance of different factors that influence generation and propagation of transient overvoltages is determined. Later it is analyzed how the transients influence connected components, and what protection is needed. Finally, if needed, the results are transferred to standardization work, where good contacts exist since earlier projects.

Participants

Tarik Abdulahovic (contact)

Forskarassistent vid Chalmers, Electrical Engineering, Electric Power Engineering

Torbjörn Thiringer

Professor vid Chalmers, Electrical Engineering, Electric Power Engineering

Funding

Swedish Energy Agency

Funding Chalmers participation during 2015–2017

Related Areas of Advance and Infrastructure

Sustainable development

Driving Forces

More information

Latest update

2015-10-29