Sökning: "Induction motors"

Visar resultat 21 - 25 av 32 uppsatser innehållade orden Induction motors.

  1. 21. Electromagnetical model of an induction motor in COMSOL Multiphysics

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektrisk energiomvandling

    Författare :Viktor Wilow; [2014]
    Nyckelord :Electromagnetical model; Induction motor; Finite element method; COMSOL Multiphysics;

    Sammanfattning : Ansys, Flux or COMSOL are examples of software-tools that can be used to study magnetic noise, caused by magnetic forces in the air-gap, in induction motors. The project team wanted to use COMSOL in this thesis. The electromagnetical domain needs to be coupled to the mechanical domain to complete the study. LÄS MER

  3. 22. Electric Motors for Vehicle Propulsion

    Master-uppsats, Fordonssystem; Tekniska högskolan

    Författare :Martin Larsson; [2014]
    Nyckelord :electric motor; vehicle propulsion; efficiency map; DC; induction; permanent magnet; switched reluctance;

    Sammanfattning : This work is intended to contribute with knowledge to the area of electic motorsfor propulsion in the vehicle industry. This is done by first studying the differentelectric motors available, the motors suitable for vehicle propulsion are then dividedinto four different types to be studied separately. LÄS MER

  4. 23. Non-Invasive Technologies for Condition Monitoring of Synchronous Motors

    Uppsats för yrkesexamina på avancerad nivå, Elektricitetslära

    Författare :John Sjölander; [2014]
    Nyckelord :Condition Monitoring; Co-simulation; Synchronous Motors;

    Sammanfattning : The modern industry today is highly dependent on electric motors of differenttypes and sizes. Synchronous motors are used in applications where a fixedspeed is desired. These machines are often found in high power applicationswhere they are preferred over induction motors due to their higher efficiency. LÄS MER

  5. 24. Predicting Electromagnetic Noise in Induction Motors

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Minh Khoa Nguyen; [2014]
    Nyckelord :;

    Sammanfattning : Induction motors are used in many applications, especially in our daily modes of transportation such as trains, cars, buses, trucks, etc. As a consequence, they contribute a significant amount of noise in the environment, which can cause serious problems on the human well-being. LÄS MER

  7. 25. Reducing Pumping Related Electricity Costs - A Case Study of Three Water Utility Companies in Zambia : Energy Efficiency in Pumping

    Master-uppsats, KTH/Energiteknik

    Författare :Bennet Siyingwa; [2013]
    Nyckelord :Pumping costs; Pump Rehabilitation; Energy Audits; Reducing Electricity Costs; Pumping; Energy Efficiency; Pumping Infrasturcture; Centrifugal Pumps; Induction Motors;

    Sammanfattning : Electric pumps are extensively used in many industrial and commercial applications worldwide and account for about twenty percent of the world’s electrical energy demand. The useful energy consumed by the pumps is less than what they demand due to inefficiency caused by a number of reasons including the mismatch between the rated operating conditions and their actual operating conditions. LÄS MER