Sökning: "switching losses"

Visar resultat 6 - 10 av 61 uppsatser innehållade orden switching losses.

1. 6. Lågtempererade fjärrvärmeöar : Low-tempered district heating islands

   Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Författare :John Åsberg; [2023]
   Nyckelord :Low temperature district heating; LTDH; Fourth generation district heating; 4GDH; Fjärrvärme; Fjärrvärmesystem; Lågtempererade fjärrvärmeöar; Energieffektivisering;

   Sammanfattning : Sweden is a country that since long have prioritized the development of energy-smart solutions and the optimization of energy systems to reduce its energy consumption. Energy usage encompasses various needs, including heating buildings and premises, but most importantly, heating of residential properties. LÄS MER

3. 7. Design and Simulation of a 10kW High-Efficiency Dual Active Bridge Converter

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

   Författare :Fan Yang; [2023]
   Nyckelord :Converter Design; Dual Active Bridge; Single Phase Shift Modulation; Extended Phase Shift Modulation; Efficiency Estimation; Konverterdesign; Dual Active Bridge; Single Fas Shift Modulation; Extended Phase Shift Modulation; Effektivitetsuppskattning;

   Sammanfattning : The EU has proposed an ambitious goal to achieve widespread E-mobility in both the electrical and commercial sectors. To accomplish this, a substantial number of DC fast-charging stations must be built. LÄS MER

4. 8. Investigation of switching power losses of SiC MOSFET : used in a DC/DC Buck converter

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

   Författare :André Xavier Svensson; [2022]
   Nyckelord :Switching power losses; Metal Oxide Semiconductor Field Effect Transistor; Silicon carbide; Synchronous Buck converter; Wide Band Gap; Double Pulse Test; Efficiency; Temperature; Växlande effektförluster; Fälteffekttransistor; Kiselkarbid; Synchronous Buck omvandlare; Wide Band Gap; Double Pulse Test; Verkningsgrad; Temperatur;

   Sammanfattning : All DC/DC converter products include power electronic circuits for power conversion.It is important to find an efficient way for power conversion to reduce power losses and reduce the need for cooling and achieve environmentally friendly solutions.The use of semiconductor switches of wide band gap type is a solution to the problem. LÄS MER

5. 9. Closed-loop control and data- recording of a modular-multilevel converter (MMC)

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

   Författare :Longgang Su; [2022]
   Nyckelord :Modular multilevel converters MMCs ; filed programmable gate array FPGA ; direct memory access DMA ; energy closed-loop control; data recording; ethernet.; Modulära multilevel-omvandlare MMC ; filed programmeable gate array FPGA ; direkt minnesåtkomst DMA ; energistyrning med sluten slinga; datainspelning; ethernet.;

   Sammanfattning : Modular multilevel converters (MMCs) are the preferred converter solution in flexible ac transmission systems (FACTS) and high-voltage direct current (HVDC) applications. This is due to the high quality of the voltage and current signals, lower overall losses, and fewer problems with switching-related EMI. LÄS MER

7. 10. Finite Control Set-Model Predictive control of Permanent Magnet Synchronous Motor

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

   Författare :Srinath Sathyamoorthy; [2022]
   Nyckelord :Model Predictive Control; Field Oriented Control; Permanent Magnet Synchronous Motor; Electric Vehicle; Model Predictive Control; Fältorienterad kontroll; Permanent Magnet Synchronous Motor; Elfordon;

   Sammanfattning : The electrification of the transportation sector has been the most important goal of the current century. In the last decade, there has been a surge in the production and sale of electric vehicles, necessitating substantial research and development in the industry. LÄS MER