Essays about: "HVDC circuit breaker"

Found 4 essays containing the words HVDC circuit breaker.

1. 1. Electromagnetic modellin and testing of a Thomson coil based actuator

   University essay from KTH/Elkraftteknik

   Author : Bence Hátsági; [2017]
   Keywords : Actuator design; FEM simulation; HVDC; hybrid circuit breaker; Thomson coil; vacuum interrupter iii; Aktuatordesign; FEM-simulering; HVDC; hybridbrytare; Thomsonspole; vakuumbrytare;

   Abstract : The aim of the present thesis is to improve and optimize a Thomson coil based actuatorfor medium voltage vacuum interrupters. The Thomson coil based actuator’s concept isdiscussed. The thesis presents analytical as well as finite element models of the actuatoralong with a comparison of their results. READ MORE

3. 2. Dynamics of an ultra-fast Thomson actuated HVDC breaker

   University essay from KTH/Maskinkonstruktion (Inst.)

   Author : Miguel Álvarez Sánchez; [2017]
   Keywords : HVDC; Ultra-fast Circuit Breaker; Thomson coil actuator; HVDC; ultra-snabb strömbrytare; Thomson-spole manöverdon;

   Abstract : High Voltage Direct Current (HVDC) is a rapidly growing form of power transmission that offers advantages with respect to conventional AC networks. One of the key elements that will allow the generalization of the HVDC grids is the Circuit Breaker (CB), which has to interrupt high DC currents in extremely short times. READ MORE

4. 3. The impact of HVDC innovations on the power industry

   University essay from KTH/Entreprenörskap och Innovation

   Author : Nikolaos Stenberg; [2013]
   Keywords : HVDC; transformation pressure; development blocks; creative destruction; reverse salient; innovation;

   Abstract : The purpose of this thesis is to examine the potential impact of High Voltage Direct Current (HVDC) innovations on the power industry. A short historical review is provided on the so-called ‘War of the Currents’, which has placed alternating current (AC) as the dominant platform for power transmission. READ MORE

5. 4. Assessment and modelling of switching technologies for application in HVDC-circuit breakers

   University essay from KTH/Elektroteknisk teori och konstruktion

   Author : Johan Lund; [2011]
   Keywords : ;

   Abstract : A key element for future DC-grids is a DC circuit breaker that in case of a short circuit fault reliably can turn off a short circuit current. AC circuit breakers are well known components that has been in use for a long time in AC-grids. The AC circuit breaker is designed to interrupt the current at its natural current zero crossings. READ MORE