Sökning: "thermal power"

Visar resultat 6 - 10 av 562 avhandlingar innehållade orden thermal power.

  1. 6. Power Electronics for Mitigation of Voltage Sags and Improved Control of AC Power Systems

    Detta är en avhandling från Institutionen för elkraftteknik

    Författare :Marcio Magalhães de Oliveira; [2000]
    Nyckelord :power electronics; power quality; voltage sags; voltage-source converters; Custom Power; FACTS; real-time simulations; solid-state devices;

    Sammanfattning : The thesis deals with the application of compensators andswitches based on power electronics in AC transmission anddistribution systems. The objective of the studieddevices/equipment is the power flow and voltage control intransmission systems and the mitigation of voltage sags andmomentary interruptions to critical loads in distributionsystems. LÄS MER

  2. 7. Thermal Study of a Submerged Substation for Wave Power

    Detta är en avhandling från Institutionen för elkraftteknik

    Författare :Antoine Baudoin; Cecilia Boström; Didier Saury; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wave power; marine substation; heat transfer; natural convection; CFD; FEM; thermal management;

    Sammanfattning : At the Division of Electricity of Uppsala University, a wave power concept is being developed.It relies on wave energy converters, one buoy and one linear generator placed on the seabed, connected together to a submerged substation. The mechanical design is kept as simple as possible to ensure reliability. LÄS MER

  3. 8. Process Control and Simulation of Ferromagnetic Strip in the Power Transformers and Electrical Machines Applications Electric power systems

    Detta är en avhandling från Västerås, Sweden : Mälardalen University

    Författare :Kourosh Mousavi Takami; Jafar Mahmoudi; Örjan Danielsson; Mihai Nicolescu; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strip; electrical machines; transformer; cold rolling mills; process; automation; control; Band; elektriska maskiner; transformatorer; kallvalsningsverk; processautomation; reglerteknik; TECHNOLOGY Electrical engineering; electronics and photonics Electric power engineering; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elkraftteknik; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : This thesis investigates optimization of the control of electrical and thermal equipment by using FEM and CFD modeling in combination with dynamic simulation models. The thesis focuses on the production of electrical strips and the control system with the aim of reducing losses and improving magnetic properties. LÄS MER

  4. 9. Characterization and Compensation of Thermal Effects in GaN HEMT Technologies

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Johan Bremer; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrothermal; temperature compensation.; AlGaN GaN; thermal coupling; characterization; thermal effects; thermal resistance;

    Sammanfattning : Further advancements with GaN based technologies relies on the ability to handle the heat flux, which consequently arises from the high power density. Advanced cooling techniques and thermal optimization of the technology are therefore prioritized research areas. LÄS MER

  5. 10. Power from the Brave New Ocean - Marine Renewable Energy and Ecological Risks

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Linus Hammar; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stereo-video; OTEC; Environmental impact; Ocean thermal energy conversion; Fish; Ecological risk assessment; Wave power; Tidal power; Offshore wind power; Ocean energy;

    Sammanfattning : This thesis address ecological risks associated with the possible growth of marine renewable energy. Tidal power, wave power, ocean thermal energy conversion (OTEC) and currently expanding offshore wind power are likely to become common components of future seascapes. LÄS MER