Essays about: "demagnetization"

Showing result 16 - 20 of 23 essays containing the word demagnetization.

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

   University essay from KTH/Elektrisk energiomvandling

   Author : Luigi Marino; [2015]
   Keywords : 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;

   Abstract : The aim of this master thesis is to design and analyse a FSCW PMaSynRM (Permanent Magnet assisted Synchronous Reluctance Motor) for industrial applications. The design process includes analytical calculations (initial design and PM amount minimization) and nite element method (FEM) based design optimization. READ MORE

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

   University essay from KTH/Elektrisk energiomvandling

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

   Abstract : This Master thesis focuses on the design of a high efficiency Permanent-Magnet-Assisted Synchronous Reluctance Motor (PMASynRM) intended for pump applications. The new motor is designed to replace an existing Induction Motor (IM) in a pump product. The basic principles of SynRM, and PMASynRM Motors and a good analytical model were introduced. READ MORE

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

   University essay from KTH/Elektrisk energiomvandling

   Author : Celia Carvajal Almendros; [2015]
   Keywords : 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;

   Abstract : The growing need for simpler and cheaper manufacturing process has led to the research into fractional-slot concentrated-wound (FSCW) motors. This concept has been widely investigated for surface-mounted permanent magnet (SMPM) machines. This thesis studies the same concept applied for synchronous reluctance machines (SynRM). READ MORE

5. 19. Assessment of magnetic cooling for domestic applications

   University essay from KTH/Tillämpad termodynamik och kylteknik

   Author : Ivan Montenegro Borbolla; [2012]
   Keywords : magnetic cooling model simulation assessment domestic applications;

   Abstract : Magnetic cooling is an emerging refrigeration technology with potential to surpass the performance of vapour compression devices. It has been successfully applied in the cryogenic temperature ranges, where magnetic cooling gas liquefiers surpass the performance of conventional liquefaction systems. READ MORE

6. 20. Analysis of fault conditions in permanentmagnet in-wheel motors

   University essay from KTH/Elektrisk energiomvandling

   Author : Yonghui Liao; [2011]
   Keywords : ;

   Abstract : The use of light in-wheel motors is an attractive alternative for smaller passenger vehicles in urban areas. An in-wheel motor design has already been developed in a previous master thesis project. In this project, the proposed design is further analysed during electrical faults using a FEM software package (JMAG). READ MORE