Sökning: "Simon Rengmyr"

Hittade 2 uppsatser innehållade orden Simon Rengmyr.

1. 1. ASSESMENT OF WIND POWER FORECASTING ERROR FOR GOTLAND

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Simon Rengmyr; [2022]
   Nyckelord :Wind power forecasting; Machine learning; Numerical weather prediction;

   Sammanfattning : When the wind blows and wind turbine generators harvests the kinetic energy and trans- forms it to electrical power, there is a need for predicting how much power that will be dispatched from the turbines. Even the most perfect computer model with high computa- tional power could not model the beauty of the forces of nature and we must accept some degree of forecasting error in the predicted power output due to the inherently stochastic patterns in the atmosphere. LÄS MER

3. 2. Tillståndskontroll av spårväxlar med mätutrustning monterad på tåg i reguljärtrafik

   Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Drift, underhåll och akustik

   Författare :Simon Rengmyr; [2017]
   Nyckelord :switches; crossings; onboard system; crossingpoint; acceleration sensor; accelerometer; vibration measurement; spårväxlar; spårväxel; ombordsystem; korsningsspets; accelerationsgivare; accelerometer; vibrationsmätning;

   Sammanfattning : From 2000 to 2015, the cost of operation and maintenance (including reinvestment) and traffic control has increased from approximately three billion to over nine billion Swedish kronor annually. By making more frequent measurements of track irregularities and identifying trends earlier, accurate and effective maintenance can be performed. LÄS MER