Sökning: "voltage drops"
Visar resultat 1 - 5 av 35 uppsatser innehållade orden voltage drops.
1. Analys av påverkan från ökad mikroproduktion och installation av laddare för elfordon i lågspänningsnät
Kandidat-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskapSammanfattning : In Sweden, the number of rechargeable cars increases for every year. It is common to charge at home, for example because there is no need to wait for the vehicle to be fully charged.Charging at home takes place with low effects for longer time periods. The installation of micro production with photovoltaic systems is also increasing. LÄS MER
2. Ride through Capability of medium-sized Gas Turbine Generators : Modelling and Simulation of Low Voltage Ride through Capability of Siemens Energy's medium-sized GTG and Low Voltage Ride through Grid Codes requirements at point of connection
Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronikSammanfattning : In order to reduce emissions and achieve sustainable energy systems, renewable energy is increasingly being integrated into the power grid. However, the integration of renewable energy into the grid poses several challenges, including maintaining a stable power supply under changing and unpredictable conditions. LÄS MER
3. Förstudie inför ombyggnation av mottagningsstation M2 Edshultshall
Kandidat-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskapSammanfattning : Västra Orust Energitjänst (VOE) står inför ett problem, där mottagningsstationen M2 Edshultshall (40/10 kV) är i behov av förnyelse efter flertal oönskade avbrott på kort tid. Vattenfall som äger regionnätet har under en längre period tänkt förstärka förbindelsen till M2 Edshultshall, men har blivit nekade av Energimarknadsinspektionen för koncessionsrätten av en ny ledning. LÄS MER
4. The effectivity of vacuum impregnation with glycerol and secondary metabolites on electroporated arugula leaves to improve freezing stability.
Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)Sammanfattning : Freeze damage is a common issue in many food items. The cellular dehydration caused by freezing can be prevented through addition of a cryoprotectant. Research has shown that it is possible to improve the freezing tolerance of plant materials by addition of cryoprotectants, which forms hydrogen bonds with water molecules. LÄS MER
5. Elimination of Harmonic Disturbances in Softstarters
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : Power system infrastructure has been facing many challenges when it comes to harmonics distortion, and power electronic devices are no exception considering their wide usage in the system. In this thesis the focus is on the impact of these system harmonics on the electrical motors which are vastly used in industry for different applications. LÄS MER