Essays about: "THD"

Showing result 1 - 5 of 16 essays containing the word THD.

  1. 1. Developing a portable, customizable, single-channel EEG device for homecare and validating it against a commercial EEG device

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

    Author : Máté Károly Tóth; [2023]
    Keywords : Electroencephalography EEG ; Portable EEG; Single-channel EEG; Commercial EEG; Brain-machine interface; Prototype development; Elektroencefalografi EEG ; Bärbar EEG; Enkanaligt EEG; Kommersiellt EEG; Hjärna-maskin-gränssnitt; Prototyputveckling;

    Abstract : There are several commercial electroencephalography (EEG) devices on the market; however, affordable devices are not versatile for diverse research applications. The purpose of this project was to investigate how to develop a low-cost, portable, single-channel EEG system for a research institute that could be used for neurofeedback-related applications in homecare. READ MORE

  3. 2. Design and performance comparison of Two-level and Multilevel Converters for HVDC Applications

    University essay from

    Author : Carlos Castillo Bonilla; Sweta Merilyn Tigga; [2019-07-03T12:44:07Z 2019-07-03T12:44:07Z 2011]
    Keywords : Elkraftteknik; Electric power engineering;

    Abstract : The purpose of this thesis is to compare a two-level and a multilevel converter for HVDC substation. For this study, both topologies were designed with different modulation strategies and compared on the basis of size, power losses and impact on power quality. READ MORE

  4. 3. Model Predictive Control of Electric Drives -Design, Simulation and Implementation of PMSM Torque Control

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

    Author : Levente Zsolt Pap; [2018]
    Keywords : PMSM; Field Oriented Control; Model Prediction Control; Inverter; Electric Drive; DSP;

    Abstract : The thesis deals with the design of a permanent magnet synchronous machine controller that isimplemented on an embedded platform to replace the off-the-shelf controller currently being used in theelectric race car of the KTH Formula Student team. Software implementation of the control algorithmwas tested in laboratory environment on the hardware prototype of a 2-level three-phase voltage sourceinverter. READ MORE

  5. 4. Evaluation of power quality and common design concept for AC-DC converters in aircraft

    University essay from

    Author : Andreas Brolund; [2017]
    Keywords : AC-DC; converter; aircraft; power electronics; MOSFET; MEA; More electric aircraft; Delta-switch; ATRU; Auto-transformer rectifier unit; Auto-transformer; Vienna rectifier; passive rectifier; active rectifier; power factor correction; APFC; PFC; MATLAB; Simulink; THD; total harmonic distortion;

    Abstract : This master thesis has been carried out in collaboration with Saab, Avionics Systems in Jönköping, Sweden, during the spring of 2017. The thesis investigates unidirectional rectifier topologies in aircraft and the focus has been on evaluating the power quality requirements according to the aircraft standards, in the course of the More Electric Aircraft concept. READ MORE

  6. 5. Design of an Optimal Analogue Microphone System for Best Possible Capture of Incoming Acoustic Signals

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Johan Sunnanväder; [2016]
    Keywords : Analogue Analog Microphone System Sound Audio Capture Acoustic Signals Electronics; Technology and Engineering;

    Abstract : This project examines how to achieve the best possible capture of incoming acoustic signals in a surveillance camera without overspending. This will be done by designing a complete analogue microphone system to be integrated into a surveillance camera and identify the critical stages in terms of performance. READ MORE