Essays about: "övertoner"

Showing result 1 - 5 of 31 essays containing the word övertoner.

  1. 1. Pulse-width voltage modulation in the Python-based open-source simulator Motulator : A Realization of SVPWM, Harmonic analyzer and Over-modulation on Two and Three-level Inverters, and a Solution for Unbalanced Neutral Point Voltage on Three-level Inverters

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

    Author : Jiale Deng; [2023]
    Keywords : Three-level inverters; over-modulation techniques; space vector modulation; neutral-point voltage balancing; non-uniform Fourier transform; Trenivåväxelriktare; övermodulation; spacevektormodulering; balansering av nollpunktsspänning; olikformig Fouriertransform;

    Abstract : Controlling the dynamic outputs of electrical machines has always been an essential topic in aerospace, automotive and other industries. Electrical machine control consists of several components, each of which can be controlled in various ways. Whereas the dynamic responses are mostly simulated using MATLAB/SIMULINK, Prof. READ MORE

  3. 2. Quality Control in Aluminium Profiles : Non-destructive Methods using Non-linear Ultrasonic

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Viktor Svensson; Robin Raymundsson; [2023]
    Keywords : Acoustic; defect; detection; harmonic; Akustisk; defekt; detektion; överton;

    Abstract : When aluminium profiles are manufactured, defects may arise, especially when theprofiles are manufactured through extrusion. During the extrusion process, thesedefects occur on parts of the extruded material because of contaminates that needto be found. READ MORE

  4. 3. Conductive interferences from multiple EC-motor installation : To measure and mitigate harmonics

    University essay from Uppsala universitet/Signaler och system

    Author : Victor Aitman; [2022]
    Keywords : harmonics; interharmonics; harmonic-mitigation; electromagnetic compability; EMC; övertoner; EC-motorer; störningar; övertonsreducering; elektromagnetiskt kompabilitet; EMC;

    Abstract : Products produced by a Swedish company are requested to be investigated regarding their harmonic and inter-harmonic currents injected into the public supply system to comply with the Swedish standard SS-EN IEC 61000-3-2, Electromagnetic compatibility (EMC).    On behalf of Systemair Sweden AB, this bachelor thesis aims firstly to investigate if their product, PAFEC 4225 WH (Air Curtain), complies with standard SS-EN IEC 61000-3-2, and if not, what measures should be taken; and secondly to develop a low-cost instrument for the measurement of harmonics and inter-harmonics according to standard IEC 61000-4-7 related to the requirements on equipment used in standard SS-EN IEC 61000-3-2. READ MORE

  5. 4. Impact of gradual increase in electric vehicle chargers in low voltage grids

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Viktor Burman Olsson; [2022]
    Keywords : ;

    Abstract : The presence of EV chargers in low voltage distribution grids increases through both public-usefacilities and at-home installations. EV charger grid impact studies are commonly focused onlarger installations such as fast-charging stations and charging pole arrays, or consider one or afew scenarios with respect to at-home EV charger amounts. READ MORE

  6. 5. Soft Energization and Blackout Recovery of Offshore Wind Farm Export System

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

    Author : Nicolas Mile; [2022]
    Keywords : STATCOM; ES-STATCOM; Blackout; Blackstart; Energization; Restoration; Offshore Wind; Power System; STATCOM; ES-STATCOM; Strömavbrott; Svartstart; Spänningssätta; Återställning; Havsbaserad Vindkraft; Energisystem;

    Abstract : Power generation of the future will be dominated by renewable energy sources. This is a positive trend as society aims to improve sustainability, energy security, and reduce CO2 emissions. This progress however bears challenges for the power systems of the future. READ MORE