Essays about: "electric currents"

Showing result 21 - 25 of 41 essays containing the words electric currents.

  1. 21. Design and Construction of High Current Winding for a Transverse Flux Linear Generator Intended for Wave Power Generation

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

    Author : Ahmed Amine Ramdani; Sebastian Rudnik; [2018]
    Keywords : Wave-power; transverse flux generator; winding; aluminum conductor; magnetic flux leakage; ocean energy; wave energy; wave energy generator; electromotive force; parallel strands; circulating currents; crowding effects; skin effect; proximity effect; eddy currents; racetrack effect; cable twisting; AlCu connection; enamel; polyamide-imide; dicloromethane; Vågkraft; transversalflödesgenerator; lindningsledare;

    Abstract : There is currently a high demand for electric power from renewablesources. One source that remains relatively untapped is the motionof ocean waves. READ MORE

  3. 22. Field-Aligned Currents and Flow Bursts in the Earth’s Magnetotail

    University essay from Umeå universitet/Institutionen för fysik

    Author : Erwin Walter; [2018]
    Keywords : Flow Bursts; Field-Aligned Currents; Dipolarization Fronts;

    Abstract : We use electric and magnetic field data from MMS spacecraft between 2016 and 2017 tostatistically investigate earthward propagating plasma flow bursts and field-aligned currents(FACs) inside the plasma sheet of the geomagnetic tail. We observe that the occurrence rateof flow burst peaks around the midnight region with decreasing trend towards Earth and theplasma sheet flanks. READ MORE

  4. 23. Electromagnetic analysis of AES-256 on Xilinx Artix-7

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

    Author : Oskar Westman; [2018]
    Keywords : Electromagnetic side-channel attack; AES-256; Artix-7; FPGA; Differential analysis; Simple analysis.; Technology and Engineering;

    Abstract : In this project, an electromagnetic side-channel attack has been made by exploiting the information leakage from a field programmable gate array (FPGA) and an implemented advanced encryption standard with a 256-bit key (AES-256). The FPGA-board was a Nexys-4 from Digilent with Artix-7 FPGA. The attack was partially successful. READ MORE

  5. 24. Load-current response to severe changes of voltage

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Shuhan Ma; [2017]
    Keywords : ;

    Abstract : Electric loads, such as computers, lamps, refrigerators and heaters connected to low-voltage distributionsystems in homes and offices differ widely in how their current responds to changes in the applied voltage.These voltage changes could be a total collapse of the voltage, a weak or strong reduction of amplitude,or a sudden phase-shift. READ MORE

  6. 25. Bearing current and shaft voltage measurement in electrical motors

    University essay from Högskolan Väst/Avdelningen för data-, elektro- och lantmäteriteknik

    Author : Edo Kolic; [2017]
    Keywords : Modulated drive; electrical motors; production;

    Abstract : Due to the fast-rising voltage pulses of pulse width modulated drives, the generated shaft voltage of electrical motors causes electrical discharge currents in bearings. These discharges can cause bearing failure leading to costly maintenance and unexpected production stops. READ MORE