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Found 2 essays matching the above criteria.

1. 1. 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

3. 2. 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