Sökning: "torque ripple"

Visar resultat 16 - 20 av 23 uppsatser innehållade orden torque ripple.

  1. 16. Synchronous Machine for Unidirectional Application

    Master-uppsats, KTH/Elektrisk energiomvandling

    Författare :Yang Yu; [2012]
    Nyckelord :Asymmetrical machine; unidirectional rotation; mixed pole; saturation mitigation; pole shifting; asymmetrical pole shaping; progressive airgap; assisted permanent magnet; armature reaction; power factor improvement.;

    Sammanfattning : This master thesis investigates the possibilities for performance improvements of synchronous machines with unidirectional application.The literature review part presents theories and applications of asymmetrical machine. LÄS MER

  3. 17. FPGA Implementation of a DB – DTFC Scheme for Induction Machines

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Gabriel Alejandro Domínguez Olaverría; [2012]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Induction machines have been used in a wide range of applications due to its robustness and its low price. These characteristics make the induction machine a suitable option for industrial and home environments especially for those applications where the required speed is constant and the load does not change drastically. LÄS MER

  4. 18. Salient Pole Motor Inverter Design : with Implementation of Space Vector Modulation

    Master-uppsats, Elektricitetslära

    Författare :Anders Kronberg; [2012]
    Nyckelord :;

    Sammanfattning : The researchers at the Department of Electricity at Uppsala University has recently entered the field of electric motor design, however no real knowledge of motor control of salient pole permanent magnet motors exists in the department. This master thesis is a continuation of a previous bachelor thesis that analyses the theory behind the control and simulating two different control methods. LÄS MER

  5. 19. Trade-offs in Control of Switched Reluctance Motors (Avvägningar vid reglering av switchade reluktansmotorer)

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Olof Troeng; [2012]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Soaring prices for rare earth metals have led to significantly increased production costs for permanent magnet motors. This has motivated research into alternative motor types, one of them, the switched reluctance motor (SRM), will be discussed in this thesis. LÄS MER

  7. 20. Rotary Position Sensors Comparative study of different rotary position sensors for electrical machines used in an hybrid electric vehicle application

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Christer Ebbesson; [2011]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Today, many projects about Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs) are in progress within the automotive industry. Fuel-efficiency and reduction of carbon dioxide emissions from vehicles are the main targets. LÄS MER