Sökning: "ferrite permanent magnets"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden ferrite permanent magnets.

  1. 1. Design and comparison of PMaSynRM versus PMSM for pumping applications

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

    Författare :Viktor Briggner; [2018]
    Nyckelord :Demagnetization; economic evaluation; permanent magnet assistance; synchronous reluctance machine; Avmagnetisering; ekonomisk utv¨ardering; permanentmagnetassistans; synkron reuktansmaskin;

    Sammanfattning : This master thesis aimed to design a permanent magnet assisted synchronous reluctancemachine (PMaSynRM) rotor for pump applications which were to be implemented inan existing Induction Machine stator. The machine were to be compared with a similarpermanent magnet synchronous machine (PMSM) with similar torque production in termsof cost and performance. LÄS MER

  2. 2. Design and Analysis of a Fractional-Slot Concentrated-Wound PM-Assisted Reluctance Motor

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektrisk energiomvandling

    Författare :Luigi Marino; [2015]
    Nyckelord :concentrated windings; demagnetization; distributed windings; ferrite; finite element method; loss distribution; natural and over compensation; overlaod; permanentmagnet assisted synchronous reluctance motors; permanent magnets; rare earth magnets NdFeB ; reluctance torque; temperature effects; torque ripple; avmagnetisering; ferrit; finita elementmetoden; fördelade lindningar; förlust distribution; koncentrerade lindningar; momentrippel; naturligt och överkompensation; permanentmagnet assisterad synkron reluktansmotorer; permanentmagneter; reluktansvridmomentet; sällsynta jordmagneter NdFeB ; temperatureffekter; överbelastning;

    Sammanfattning : The aim of this master thesis is to design and analyse a FSCW PMaSynRM (PermanentMagnet assisted Synchronous Reluctance Motor) for industrial applications. The designprocess includes analytical calculations (initial design and PM amount minimization)and nite element method (FEM) based design optimization. LÄS MER

  3. 3. Design of a Synchronous Reluctance Motor Assisted with Permanent Magnets for Pump Applications

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektrisk energiomvandling

    Författare :Adrian Ortega Dulanto; [2015]
    Nyckelord :Demagnetization study; efficiency; FEM; parametric study; Permanent-Magnet Assisted Synchronous Reluctance Motor; prototype;

    Sammanfattning : This Master thesis focuses on the design of a high efficiency Permanent-Magnet-AssistedSynchronous Reluctance Motor (PMASynRM) intended for pump applications. The new motor isdesigned to replace an existing Induction Motor (IM) in a pump product.The basic principles of SynRM, and PMASynRM Motors and a good analytical model wereintroduced. LÄS MER

  4. 4. Design and Analysis of a Fractional-Slot Concentrated-Wound Permanent-Magnet-Assisted Synchronous Reluctance Machine

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektrisk energiomvandling

    Författare :Celia Carvajal Almendros; [2015]
    Nyckelord :Demagnetization; finite element method; flux-weakening; fractional slot concentrated winding; overload capability; permanent magnet assisted synchronous reluctance machine; torque ripple; Avmagnetisering; finita elementmetoden; fältförsvagning; koncentrerade lindningar; momentrippel; permanentmagnetassisterad synkron reluktansmaskin; överbelastningskapacitet;

    Sammanfattning : The growing need for simpler and cheaper manufacturing process has led to the research intofractional-slot concentrated-wound (FSCW) motors. This concept has been widely investigatedfor surface-mounted permanent magnet (SMPM) machines. This thesis studies the sameconcept applied for synchronous reluctance machines (SynRM). LÄS MER

  5. 5. PROCESSUTVECKLING FÖR JÄRNBASERADE HÅRDMAGNETISKA PULVER UTAN SÄLLSYNTA JORDARTSMETALLER

    Master-uppsats, Lunds universitet/Materialteknik

    Författare :Per-Olof Andersson; [2014]
    Nyckelord :Crystalline metals; Magnetic materials; Hard magnetic materials; Electro-magnetic applications; Single crystalline powder; Powder metallurgy; Fe2B; FeB; Water atomization; Gas Water atomization; non-RE hard magnetic material.; Technology and Engineering;

    Sammanfattning : An experimental study was performed, aimed at finding a way to produce single crystalline powder of pure (Fe0.7Co0.3)2B with a particle size of 100-200nm. This was done with the ultimate goal of producing a hard magnetic ferrite powder for powder metallurgical production of permanent magnets. LÄS MER