Sökning: "fault ride-through"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden fault ride-through.

1. 1. Ride through Capability of medium-sized Gas Turbine Generators : Modelling and Simulation of Low Voltage Ride through Capability of Siemens Energy's medium-sized GTG and Low Voltage Ride through Grid Codes requirements at point of connection

   Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Författare :Daniel Almailea; [2023]
   Nyckelord :Gas Turbines; Synchronous Machines; Generators; Turbogenerators; Fault Ride Through FRT ; Low Voltage Ride Through LVRT ; Grid Codes; Frequency; Inertia; Generator Inertia; Power System; MATLAB; Simulink; Modeling; Excitation System; Automatic Voltage Regulator AVR ; Saturation Curve; Capability Curve; Load Angle; Siemens Energy.;

   Sammanfattning : In order to reduce emissions and achieve sustainable energy systems, renewable energy is increasingly being integrated into the power grid. However, the integration of renewable energy into the grid poses several challenges, including maintaining a stable power supply under changing and unpredictable conditions. LÄS MER

3. 2. System impact of micro-production

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

   Författare :Annie Haraldsson; [2023]
   Nyckelord :Fault ride through; LVRT; micro-production; solar production; photovoltaics; fault simulation; network modeling; power system disturbances; PMU-registrations; fault analysis; Technology and Engineering;

   Sammanfattning : The focus in this thesis has been active power from small scale solar production and what possible impacts an increased proportion of small scale production can have, in a larger context, during short circuit (SC) faults in the grid. The main research question prompting this work was whether active power from small scale solar pro- duction can help support voltages during SC faults, and meet LVRT-requirements in the RfG. LÄS MER

4. 3. Simplified Model For Simulation of Fault Ride Through at Hydropower Units

   Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Sebastian Söderström; [2021]
   Nyckelord :Fault Ride Through; Hydropower; Simulation; Generator; Simulink; Transient Stability; Gränsbryttid; Vattenkraft; Simulering; Generator; Simulink; Transient Stabilitet;

   Sammanfattning : As new requirements for grid connected generators were implemented, the requirements for evaluating the Fault Ride Through capabilities of the generators became stricter. When refurbishing a power unit, proof that the power unit meet the requirements must be submitted to the authorities. LÄS MER

5. 4. Development of a Real-Time Simulation Model in RSCAD of a STATCOM and its Control System

   Master-uppsats, Uppsala universitet/Elektricitetslära

   Författare :Jessica Redander; Johanna Lenárd; [2021]
   Nyckelord :STATCOM; FACTS; Grid Forming; Control System; Modular Multilevel Converter; Voltage Source Converter; Power System; RSCAD; RTDS;

   Sammanfattning : The development of interconnected power systems together with an increasing number of renewable non-synchronous power sources, create major challenges for the power system to meet the voltage stability and power quality requirements. One way to increase the voltage stability in a sustainable way is to locally implement a STATCOM. LÄS MER

7. 5. Fault energy implications of distributed converter interfaced generation : A case study of an underground mine grid

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Tommy Hjertberg; [2021]
   Nyckelord :Dispersed PEID generators; short circuit energy; arc incident energy; protective relays; fault ride through; Distribuerad omformardriven generering; kortslutningsenergi; händelseenergi; reläskydd; felgenomkörning;

   Sammanfattning : Adding Power Electronic Interfaced Devices (PEID) generation to grids is an increasing trend because of the concurrent development of better power electronic converters and a greater interest in a better utilisation of energy resources. Small and dispersed energy sources that would previously not be worth introducing into the grid is becoming more and more viable and other potential benefits such as better control of voltage levels and smoothing out load changes also spur this development. LÄS MER