Browsing USN Open Archive by Author "Tollefsen, Tonje"
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Modelling the synchronisation control for a hydro power controller
Hellborg, Jonatan; Tollefsen, Tonje; Bhusal, Khemraj; Winkler, Dietmar (Peer reviewed; Journal article, 2021)This paper presents the modelling of a synchronisation control as used inside a typical hydro power controller for small hydro power plants. It was built using the open-source modelling language Modelica by use of the ... -
Non-intrusive ultrasonic sound detection of internal arc fault in medium voltage switchgear
Tollefsen, Tonje (Master thesis, 2021)Arc fault protection is becoming ever more critical for all power systems to maintain the safety of personnel and reduce damage to expensive equipment. An internal arc fault is an unintentional event within an enclosed ...