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Hittade 3 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Design and Simulation of a Slotless Aircored PM Synchronous Generator

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Bakhtiyar Asef Hasnain; Ademir Hodzic; [2020]
    Nyckelord :Slotless; Aircored; PM; Permanent Magnet; PMSG; Permanent Magnet Synchronous Generator; SPMSG; COMSOL; FEMM; FEM; Solidworks; Fusion 360; Axial Flux Generator;

    Sammanfattning : This thesis is a study on an unconventional slow speed direct drive permanent magnet (PM) generator. Unlike a standard permanent magnet synchronous generator (PMSG) which has the copper coils wound around iron teeth, the work in this thesis will present a generator where the copper coils are directly mounted on the stator which eliminates the slots and teeth in the generator. LÄS MER

  3. 2. High-Frequency Voltage Distribution Modelling of a Slotless PMSM from a Machine Design Perspective

    Master-uppsats, KTH/Elkraftteknik

    Författare :Patrik Brauer; [2018]
    Nyckelord :Windings; drives; transients; surges; steep-fronted; slotless; litz-wire; effective relative permeability; Lindningar; elektriska drivlinor; transienter; spänningspulser; litz-tråd; effektiv relativ permeabilitet;

    Sammanfattning : The introduction of inverters utilizing wide band-gap semiconductors allow for higher switching frequency and improved machine drive energy efficiency. However, inverter switching results in fast voltage surges which cause overvoltage at the stator terminals and uneven voltage distribution in the stator winding. LÄS MER

  4. 3. Modellering och design av elmotor för mutterdragare

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Fredrik Zachrisson; [2009]
    Nyckelord :;

    Sammanfattning : This thesis was carried out at Atlas Copco Tools and Assembly Systems. The purpose has been to develop a design tool to be used for development of new electric motors for Atlas Copcos electric nutrunners. The focus of the thesis has been to increase productivity by decreasing the power losses in an electric tool. LÄS MER