Essays about: "Current Limiter"

Found 5 essays containing the words Current Limiter.

  1. 1. Maximum Inverter AC Current Prediction Based on Junction Temperature Calculation

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

    Author : Shuyu Ou; [2019]
    Keywords : IGBT; Inverter; Junction temperature; Current Limiter; IGBT; Växelriktare; Övergångstemperatur; Strömbegränsare;

    Abstract : Semiconductor devices are widely used in the automotive industry, and they are key components of the inverter and the converter in an electric vehicle. Thus, the concern of protecting the inverter and the converter from damaging operation has been raised. The junction temperature is one of the main considerations. READ MORE

  3. 2. Grounding of distrubution grids : High impedancegrounding compared to solid grounding with Fault Current Limiter

    University essay from

    Author : Maria Kättström; [2017]
    Keywords : ;

    Abstract : Today cables replace overhead lines in distribution systems and cause higher system capacitance and higher capacative fault currents. This fault current, in the fault location, is limited by a Petersén coil and a resistance in parallel when a fault occurs in so called “high impedance grounded systems” which are commonly used in Europe. READ MORE

  4. 3. Design and Test of an L-Band (GNSS) Low Noise Amplifier and Limiter

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

    Author : Ms Navneeta; [2015]
    Keywords : Technology and Engineering;

    Abstract : Abstract This thesis work was performed at RUAG Space AB, Göteborg, Sweden. The aim of this thesis is to test the performance boundaries of SiGe based heterojunction bipolar transistor in designing a low noise amplifier meant for GNSS applications. READ MORE

  5. 4. Optimized Tuning of Parameters for HVDC Dynamic Performance Studies

    University essay from Institutionen för informationsteknologi

    Author : Axel Andersson; [2013]
    Keywords : optimization;

    Abstract : HVDC (High Voltage Direct Current) is used all over the world for transmission of electric power due to lower losses compared to traditional HVAC (High Voltage Alternating Current). However, the procedure of converting AC into DC puts great demand on the control system of the converter stations. READ MORE

  6. 5. Design and Construction of an EV Driveline Prototype with an Integrated Flywheel

    University essay from Elektricitetslära

    Author : Nils Finnstedt; [2010]
    Keywords : Flywheel; Driveline; EV; Power Converter;

    Abstract : Research shows that flywheels have a significant potential for improving the performance of EV (Electric Vehicle) drivelines. Flywheels can be used as power buffers that even out the energy flow between the primary energy storage device and the EV traction motor. READ MORE