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Showing result 1 - 5 of 7 essays matching the above criteria.

  1. 1. Fault diagnosis of a variable pole-phase motor

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Claes Henriksson; [2023]
    Keywords : Multiphase machine; variable pole-phase machine; fault diagnosis; switch fault; phase fault; harmonic plane decomposition; wound independently controlled stator coil machine; Multifasmaskin; variabel polfasmaskin; feldiagnosticering; brytarfel; fasfel; harmonic plane decomposition; WICSC-maskin;

    Abstract : Wound Independently Controlled Stator Coil (WICSC) machines are a novel type of multiphase machine with the ability to change its pole-phase configuration during operation. This enables improved post-fault control and thus prolonged continuous operation. READ MORE

  2. 2. Value Sensitive Future of Persuasive Technology in Retail : Multi-Stakeholder Approach

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Dominika Grossova; [2023]
    Keywords : persuasive technology; value sensitive design; ethics in HCI; multi-stakeholder appraoch; artificial intelligence; retail; övertygande teknologi; värdekänslig design; etik i HCI; flerpartsperspektiv; artificiell intelligens; detaljhandel;

    Abstract : Persuasive technology is becoming increasingly prevalent in the retail industry, often to influence customer behaviours and increase sales. This study explores multi-stakeholder perspectives on the values, ethical considerations, and possible risks associated with the implementation of such persuasive technologies. READ MORE

  3. 3. Analysis and Performance Evaluation of a Three-phase Three-level Sparse Neutral Point Clamped Converter for Industrial Variable Speed Drives

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Pengpeng Sun; [2022]
    Keywords : Sparse Neutral Point Clamped Converter; Industrial Variable Speed Drives; Silicon IGBT; Calorimetric Measurement; Reverse Recovery Energy; Sparse Neutral Point Clamped Converter; Industriella Varvtalsstyrda Motordrifter; Silicon IGBT; Kalorimetrisk Mätning; Energi för Återhämtningsprocess;

    Abstract : This thesis project focuses on the simulation, design, hardware realization, and performance evaluation of a Three-phase Three-level (3-L) Sparse Neutral Point Clamped Converter (SNPCC) for Industrial Variable Speed Drives (VSDs). The basic operating principle of the SNPCC is briefly described based on switching functions. READ MORE

  4. 4. Commissioning of a FPGA/DSP unit for Centralized Control of a Variable Phase Pole Multiphase Machine

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Jonas Hansson; [2022]
    Keywords : Harmonic Plane Decomposition; Multiphase Electrical Machine; Wound Independently-Controlled Stator Coils; System on a chip; Control Implementation; Hardware Design ; Motorstyrning; Asynkronmotor; Multifasmaskin; Programmering; Systemkrets; Hårdvarukonstruktion;

    Abstract : Multiphase Electrical Machines (MPEMs) with variable phase-pole configurations have recently gained interest as it offers advantages such as a larger operating range and improved fault tolerance compared to more traditional MPEMs. The current state-of-the-art modeling and control method, Vector Space Decomposition (VSD), has the drawback of introducing discontinuities in the model when transitioning from one phase-pole configuration to another. READ MORE

  5. 5. Fallots tetrad hos hund och människa : embryologi, genetik och diagnostik

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Emma Palmér; [2016]
    Keywords : Fallots tetrad; hund; embryonalutveckling; medfödda hjärtfel; tetralogy of Fallot; canine; embryonic development; congenital heart disease;

    Abstract : Hos människa är anomalier i hjärtat bland de vanligaste medfödda missbildningarna. Även hos hund är medfödda missbildningar i hjärtat relativt vanliga men prevalensen skiljer sig både mellan renrasiga hundar och korsningar samt mellan olika raser. Fallots tetrad (TOF) är en av missbildningarna som kan ses i hjärtat. READ MORE