Essays about: "Reactance"
Showing result 1 - 5 of 20 essays containing the word Reactance.
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1. A numerical comparison of the thermoacoustics for different equivalence ratios for n-dodecane using LES
University essay from Lunds universitet/Institutionen för energivetenskaperAbstract : Klimatförändringarna påverkar vår värld och det behövs ett mer hållbart samhälle. Flygindustrin är i behov av förändring, men flygmotorer är mycket komplexa och tar tid att utveckla. Termoakustiska instabiliteter har kraften att förstöra en motor, men också att minska miljöpåverkan. READ MORE
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2. Mitigating SSCI in a hybrid wind and PV farm utilizing PV-STATCOM : A Swedish case study
University essay from Högskolan Dalarna/Institutionen för information och teknikAbstract : The share of electricity generation in the power system being based on power electronics is increasing, which will impact the system in different ways, such as an increased risk for undesired interactions. An example is doubly fed induction generator (DFIG) based windfarms which have been shown to present negative resistance in (parts of) the sub-synchronous range (i. READ MORE
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3. Power Electronic Enhanced Distribution Transformer : Seamless Voltage Regulation with Extended Functionalities
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : On-load tap changers and static synchronous compensators (STATCOM) are the main components for voltage regulation and power quality optimization in the power system. STATCOMs are used in both industrial applications and utility to stabilize the grid and reduce downtime. READ MORE
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4. Simplified Model For Simulation of Fault Ride Through at Hydropower Units
University essay from Uppsala universitet/Institutionen för fysik och astronomiAbstract : 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. READ MORE
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5. Resonant overvoltages caused by transformer energization and saturation : Two EMT case studies conducted using models of the grid in Stockholm and an off-shore wind farm
University essay from Uppsala universitet/ElektricitetsläraAbstract : This thesis investigates the impact of resonant overvoltages and their origin. Series and parallel resonances are present in any electrical grid. The frequency of which this resonance occurs is called resonance frequency. READ MORE