Essays about: "Dc power protection systems"

Showing result 1 - 5 of 6 essays containing the words Dc power protection systems.

1. 1. Design and Simulation of a 10kW High-Efficiency Dual Active Bridge Converter

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

   Author : Fan Yang; [2023]
   Keywords : Converter Design; Dual Active Bridge; Single Phase Shift Modulation; Extended Phase Shift Modulation; Efficiency Estimation; Konverterdesign; Dual Active Bridge; Single Fas Shift Modulation; Extended Phase Shift Modulation; Effektivitetsuppskattning;

   Abstract : The EU has proposed an ambitious goal to achieve widespread E-mobility in both the electrical and commercial sectors. To accomplish this, a substantial number of DC fast-charging stations must be built. READ MORE

3. 2. Parameter Study of Arc Squeezing DC Breaker : The impact of the geometry on counter force, pressure, and arc voltage

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

   Author : Johanna Olsson; [2022]
   Keywords : Arc squeezing; DC breaker; Polymer ablation; Pressure measurement; Ljusbågssläckning; DC brytare; Polymerablation; Tryckmätning;

   Abstract : The sustainable future in our already electrified world includes solar power generation, battery storage, and electric vehicles all which requires DC systems. DC breakers play a key role in operation and protection within the DC system. READ MORE

4. 3. Gate driver solutions for high power density SMPS using Silicon Carbide MOSFETs

   University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

   Author : Farhan Akram; [2021]
   Keywords : SiC MOSFETs; Gate drivers; DC-DC converter; High power and efficiency power supplies;

   Abstract : Discrete silicon carbide (SiC) power devices have unique characteristics that outpace those of silicon (Si) counterparts. The improved physical features have provided better faster switching, greater current densities, lower on-resistance, and temperature performances. READ MORE

5. 4. Transient Waveform Clustering : Developing efficient data analytics toolchains applying unsupervised machine learning techniques on power quality events

   University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

   Author : Albert Varghese Rajan; [2021]
   Keywords : HVDC; Power Quality; Machine Learning; Autoencoder; Clustering; Monitoring and analytics;

   Abstract : High Voltage Direct Current (HVDC) transmission systems appropriate for bulk power transfer to meet increasing power demands and ideal for interconnecting power systems with distant renewable sources of energy without any chances of loss synchronism, efficiency, and reliability. The main obstacle is however connected with the DC grid protection where the timely diagnosis of faults is critical to prevent any rapid built-up leading to failure of the power electronic devices. READ MORE

6. 5. Protection of HVDC Grids Against Blackouts (Simulation)

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

   Author : Amal Al-Ammari; Dinah Atchan; [2021]
   Keywords : High Voltage Direct Current HVDC ; Voltage derivative dv=dt algorithm; Traveling wave algorithm; PSCAD simulation; Multi-terminal grid; Fault detection; Threshold value; Offshore HVDC; DC breaker; Voltage collapse;

   Abstract : In the search for green energy to combat climatechange, a shift from conventional energy sources such as coal,oil, and nuclear towards Renewable Energy Sources (RES) isneeded. This shift poses a threat to the stability of the powergrids as RES do not contribute with rotating mass in the system. READ MORE