Essays about: "high power distance"

Showing result 1 - 5 of 82 essays containing the words high power distance.

  1. 1. Experimental Study: Link-QualityEstimations in a City-DeployedWireless Sensor Network

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Max Wijnbladh; [2017]
    Keywords : ;

    Abstract : As the capabilities and scalability of the Internet grow largerand become more advanced, new opportunities arise that enableusers to make use of this enhanced manner in which to distributedata. One particular example of this is Wireless Sensor Networks -networks consisting of small sensors with wireless communicationcapabilities, which can monitor and record environmental phenomenawith the intention of forwarding the obtained information toindividual clients or centralized servers for data mining. READ MORE

  2. 2. Power Loss Evaluation of Submarine Cables in 500 MW Offshore Wind Farm

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Lahiru Kushan Jayasinghe; [2017]
    Keywords : Power Loss; Offshore Windfarm; Submarine Cables; HVAC; HVDC LCC; HVDC VSC; MATLAB Simulink;

    Abstract : The main objective of this thesis is to develop a new methodology to evaluate the transmission cable losses of wind-generated electricity. The research included the power loss variations of submarine cables in relation to the line length, cable capacity and the transmission technology in an offshore wind farm having a capacity of 500 MW. READ MORE

  3. 3. Compensation of Thermal Effects by Dynamic Bias in Low Noise Amplifiers

    University essay from Chalmers tekniska högskola/Institutionen för mikroteknologi och nanovetenskap

    Author : Johan Bremer; [2017]
    Keywords : GaN; LNA; dynamic bias; temperature sensor; thermal effects; thermal degradation; heat transfer; heat coupling; mesa; Schottky diode; modeling;

    Abstract : There is an increasing need to understand how thermal effects affect the performance of amplifiers in radar systems. Increased chip power densities are to be expected as the integration of multiple transceivers in SiGe/BiCMOS and in GaN, increases. READ MORE

  4. 4. Analysis and improvements of outdoor hot benches in Gävle

    University essay from Högskolan i Gävle/Energisystem

    Author : Lucía Arcos Usero; [2017]
    Keywords : District heating; conduction; convection; radiation; heat transfer; hot benches;

    Abstract : Five exterior hot benches have been installed in Gävle, in Kyrkogatan street by the company Gävle Energi with the aim of achieving the wellnes of people that sit on them. This system uses the residual heat from the district heating, representing consequently a non-polluting system. READ MORE

  5. 5. The impacts of series compensated EHV lines on distance protection, and a proposed new mitigation solution

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Syed Arif Ullah Shah; [2017]
    Keywords : Series compensation; metal oxide varistor; voltage inversion; current inversion; sub-synchronous oscillation; quadrilateral characteristic distance relay; digital high-pass filter; Seriekompensation; metalloxidvaristor; spänningsinversion; ströminversion; subsynkron oscillation; fyrsidig karakteristiskt distansrelä; digitalt högpassfilter;

    Abstract : Series compensation is extensively applied to the transmission lines to increase the power transfer capability of transmission lines, reduce transmission losses, improve voltage profiles, and improve power oscillation damping and transient stability of power systems. But it modifies the apparent impedance of the transmission lines during fault conditions and might cause the distance protection of transmission lines to encounter directional discrimination issues and reach problems. READ MORE