Essays about: "shaft current"

Showing result 21 - 25 of 34 essays containing the words shaft current.

  1. 21. Wireless control and measurement system for a hydropower generator with brushless exciter

    University essay from Uppsala universitet/Elektricitetslära

    Author : Fredrik Evestedt; [2015]
    Keywords : brushless exciter; magnetic field measurement; wireless communication; printed circuit board; hydropower;

    Abstract : Hydropower has been around for more than a century and is considered a mature technology, but with recent advancements in power electronics and simulation capability new exciting ways to increase efficiency and reliability is possible. At Uppsala University a brushless exciter has been constructed for the experimental test rig, SVANTE. READ MORE

  3. 22. 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. 23. Simulation, design and experimental validation of a passive magnetic damper for ultra-fast actuators

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Chen Chen; [2014]
    Keywords : Damping; Thomson actuator; eddy currents; magnets; ferromagnetic materials;

    Abstract : A contact system driven by a high energetic Thomson actuator requires to be decelerated from full speed down to zero. The forces originated from the interaction between a stationary copper tube and a moving array of magnets combined with plastic or ferromagnetic material are used to generate eddy-current damping. READ MORE

  5. 24. Predicting the design relevant loadsin the engine mount systemat an early stage of thedevelopment process

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : KATRIN ENGEL; [2013]
    Keywords : chain of effects; engine mount system; maximum loads; load-predicting method; lastorsakande effekter; motorupphängning; maximallaster; lastgenererande metod;

    Abstract : I fordonsindustrin har det blivit allt viktigare att sänka processtider samt utvecklingskostnaderför att kunna bibehålla övertaget gentemot konkurrenterna. Det finns därför ett behov av attkontinuerligt se över både den övergripande produktutvecklingsprocessen samt subprocesser såsom konstruktionsprocesser av enskilda komponenter. READ MORE

  6. 25. Simulation driven pre-operative planning for the treatment of hallux rigidus : A novel concept of implant assessment

    University essay from KTH/Medicinsk teknik

    Author : Martin Paulsen; [2013]
    Keywords : Biomechanics; Implant assessment; Hallux rigidus; FEM.;

    Abstract : The present study utilizes finite element analysis in order to simulate a surgical operation in the treatment of a hallux rigidus case, as designed and developed by Episurf Medical AB (Stockholm, Sweden). The surgical intervention includes an initial cheilectomy as well as an insertion of an orthopedic implant. READ MORE