Essays about: "harmonic losses"

Showing result 1 - 5 of 21 essays containing the words harmonic losses.

  1. 1. Mapping of IPM machine efficiency and Noise Vibration Harshness : An investigation into trade-offs with respect to efficiency and Noise Vibration Harshness

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Bix Eriksson; Erik Rudqvist; [2023]
    Keywords : ;

    Abstract : Due to the recent shift towards electrification, electric machines has become a prominent option to be used in vehicle applications. Much effort is spent in the development process of these machines to make optimizations in order to improve the performance aspects of the machine. READ MORE

  3. 2. Comparative Analysis of Several Designs of Modular Multilevel Converters with Interleaved Half-Bridge Submodules

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

    Author : Lingyu Chen; [2022]
    Keywords : Modular multilevel converters MMC ; interleaved half-bridge submodule; interleaved converters; power loss calculation; converter efficiency; converter dimensions; Modulära multilevel-omvandlaren; interfolierad halvbrygga submodul; interfolierade omvandlare; effektförlustberäkning; omvandlareffektivitet; omvandlardimensioner;

    Abstract : The Modular Multilevel Converter (MMC) is one of the most commonly used active converters in the high-/medium-voltage sector due to its many advantages such as high scalability, high efficiency, modularity and low harmonic contents. However, in low-voltage and high-current applications, classical MMC designs are not very economical. READ MORE

  4. 3. Analysis of Different Switching Patterns to Minimize Losses in a Six- Phase Drive for Marine Application

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

    Author : Yanick Patrick Frei; [2021]
    Keywords : Multiphase machines; Switching patterns; Winding conduction losses; Converter losses; MATLAB SIMULINK; Flerfasmaskiner; Modulatorer; Spolledningsförluster; Omvandlarförluster; MATLAB SIMULINK;

    Abstract : Multiphase machines have gained a lot of popularity during the recent years, as they offer certain benefits over their three- phase counterparts. This work investigates the losses of a six- phase drive system for a marine application when supplied by four different switching patterns (also referred to as modulators). READ MORE

  5. 4. Torque Ripple Analysis and Compensation of Servo Drives for Robot Application

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : August Millqvist; [2021]
    Keywords : Technology and Engineering;

    Abstract : Permanent magnet synchronous motors or PMSMs are commonly used in multiple applications, both in industry and commercial use. These motors have many pros when compared to other electrical machines but do present the issue of torque ripple, especially cogging torque. READ MORE

  6. 5. Implementation of Nodes in HVDC Grids

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

    Author : Johanna Olsson; [2020]
    Keywords : HVDC transmission; inverter; pulse width mod-ulation inverters; pulse width modulation; power quality; har-monics; bipolar switching; unipolar switching; total harmonicdistortion;

    Abstract : This project is made for a deeper understanding ofhow frequency and amplitude of the waves that create the controlwave in a Pulse Width Modulated 2-level inverter affect the powerquality and power losses. The results were that a high frequencyreduces the Total Harmonic Distortion but increases the powerloss. READ MORE