Sökning: "elkraft distribution"

Visar resultat 1 - 5 av 23 uppsatser innehållade orden elkraft distribution.

1. 1. Monitoring of Partial Discharges on Cable Terminations : An experimental approach to evaluate non-conventional online PD measurement techniques

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Tony Sibo; [2023]
   Nyckelord :Monitoring; Partial discharges; Medium-voltage cable terminations; Sensor performance; Reliability evaluation; Infrared camera IR-camera ; Ultrasonic emission sensor AE-sensor ; Temperature and relative humidity sensor TRH-sensor ; High frequency current transformer HFCT ; Transient earth voltage antenna TEV-antenna ; Conventional VS non-conventional PD measurement techniques; Övervakning; Partiella urladdningar; Mellanspänningskabelslut; Evaluering av sensorprestanda; Utvärdering av systemets tillförlitlighet; Infraröd kamera; Ultraljudssensor; Temperatur- och relativ fuktighetssensor; Högfrekvent strömtransformator; Transient jordspänningsantenn; Konventionella vs icke-konventionella mättekniker;

   Sammanfattning : The transmission of electric power over long distances has historically posed challenges. However, the advent of high-voltage engineering has not only addressed distance barriers and power losses in electricity transmission and distribution, but it has also significantly improved the efficiency and transmission capacity of power grids. LÄS MER

3. 2. Coincidence Factor and Battery Energy Storage Systems for Industrial Electrical Power Supply : A Field Study of Building 178 at Scania AB, Södertälje

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Lucas Wallhager; [2023]
   Nyckelord :Coincidence factor; Industrial electric load diversity; Velander; Normal distribution; Herman-Beta; Battery energy storage system; Sammanlagringsfaktor; Industriell elförbrukning; Velander; Herman-Beta; Batterier för energilagring;

   Sammanfattning : Coincidence factors have been researched since the late 1800s, as they displays the ratio between the maximum coincidencental power usage of a system, and the sum of the maximum individual loads of the system. Accurate estimations of the highest coincidental power usage allow for minimal material usage when constructing substations, transformers, overhead lines, and cables for power transmission. LÄS MER

4. 3. What would be the highestelectrical loads with -20°C inStockholm in 2022 ? : A study of the sensitivity of electrical loads to outdoor temperature in Stockholm region.

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Magali Mellon; [2022]
   Nyckelord :Data-driven approach; Electrical load forecasting; Temperature sensitivity; Linear Regression; Time series analysis; SARIMAX;

   Sammanfattning :  In the last 10 years, no significant increase in the peak electricity consumption of the region of Stockholm has been observed, despite new customers being connected to the grid. But, as urbanization continues and with electrification being a decisive step of decarbonization pathways, more growth is expected in the future. LÄS MER

5. 4. Feasibility study for electrification of Logistics centre at Stockholm Royal Seaport

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Rohit Kumar Sachdewani; [2021]
   Nyckelord :Electrification; Battery Storage Systems; GAMS; Optimisation program; Construction Site; Logistics Centre; Elektrifiering; Batterilagringssystem; GAMS; optimeringsprogram; byggarbetsplats; logistikcenter;

   Sammanfattning : In the eastern part of Stockholm, a major urban development project is taking place. It is called Stockholm Royal Seaport and up to the year 2030 approximately 12000 new homes, 35000 workplaces and 600000 square meters of commercial areas will be added to the area. The project has been given a very ambitious environmental action program. LÄS MER

7. 5. Driftoptimering av reaktiv effekt

   M1-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Författare :Robert Näslund; [2019]
   Nyckelord :elkraft; driftoptimering; reaktiv; effekt; robert; näslund; elkraftteknik; faskompensering; kondensatorbatteri;

   Sammanfattning : Övik Energi Nät has an agreement with Vattenfall where Övik Energi Nät is entitled to a certain amount of generation of reactive power and a certain amount of consumption of reactive power. This agreement applies to two distribution stations located on each side of the city. LÄS MER