Sökning: "Electrical Distribution System"

Visar resultat 1 - 5 av 278 avhandlingar innehållade orden Electrical Distribution System.

  1. 1. Power System Oscillations - Detection, Estimation and Control

    Detta är en avhandling från Department of Industrial Electrical Engineering and Automation, Lund Institute of Technology

    Författare :Morten Hemmingsson; Lunds universitet.; Lund University.; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; oscillation; power system; damping; power swing; distance protection; detection; estimation; real-time; reactive co-variation; control; Electrical engineering; load modulation; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Sammanfattning : The topic of this thesis is the electro-mechanical oscillations which to some extent always are present in a power system. The demand of electric power is ever increasing. At the same time, the tolerance of disruptions in the power supply is decreasing. LÄS MER

  2. 2. Opportunistic Content Distribution A System Design Approach

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Sylvia Todorova Kouyoumdjieva; KTH.; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The penetration of smart pocket-size devices that provide constant Internet connectivity, such as mobile phones, has significantly changed the way people obtain, view and share information. Content provision is not anymore a prerogative to professionals; individuals are not solely customers, but also act as content generators and distributors. LÄS MER

  3. 3. Enterprise architecture for IT management a CIO decision making perspective on the electrical power industry

    Detta är en avhandling från Stockholm : Elektrotekniska system

    Författare :Mathias Ekstedt; KTH.; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Enterprise architecture; Enterprise system; Chief information officer; Information technology management; Architectural theory; Electric power industry; Elektronik; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Sammanfattning : Within the electric power industry, the average company's enterprise system - i.e. the overall system of IT related entities - is today highly complex. LÄS MER

  4. 4. The Four-Quadrant Transducer System for Hybrid Electric Vehicles

    Detta är en avhandling från Stockholm : KTH

    Författare :Erik Nordlund; KTH.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Electrical Machines; Hybrid Vehicles; Elektroteknik; TECHNOLOGY Electrical engineering; electronics and photonics Electrical engineering; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektroteknik;

    Sammanfattning : In this thesis a hybrid electrical powertrain called the Four Quadrant Transducer (4QT) has been evaluated through different driving simulations, which later resulted in the manufacture of a prototype.The simulation of a 12 metric ton distribution truck showed that the 4QT system can reduce the fuel consumption by approximately 30 % during the FTP75 drive cycle. LÄS MER

  5. 5. Impact on the Distribution System due to Plug-In Electric Vehicles and Changes in Electricity Usage

    Detta är en avhandling från Stockholm : KTH

    Författare :David Steen; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Open loop radial distribution system; Plug-in hybrid electric vehicle PHEV ; Load management; Electrical distribution system; Plug-in Electric Vehicle PEV ; Electric vehicle EV ;

    Sammanfattning : Replacing conventional vehicles by Plug-in Electric Vehicles (PEVs) would likely increase electricity demand and put higher stress on the electrical power system. This thesis presents an approach to evaluate the impact on electrical distribution systems (DSs) caused by charging PEVs and load management of heating loads. LÄS MER