Essays about: "Reactive compensation"

Showing result 6 - 10 of 30 essays containing the words Reactive compensation.

1. 6. Pre-study of optical LED units for shunting signals

   University essay from KTH/Hälsoinformatik och logistik

   Author : Tobias Adolfsson; Axel Dellenby; [2021]
   Keywords : LED - Light Emitting Diode; Booster Converter; MLCC - Multi-layer capacitor; ESR - Equivalent Serie Resistance; OU - Optical Unit; Reactive compensation; LED - lysdiod; step-up omvandlare; MLCC - flerskiktskeramisk kondensator; ESR - ekvivalent serie motstånd; OU - optiskt enhet; reaktiv kompensering;

   Abstract : Alstom wanted to investigate the possibility of adapting its light emitting diode (LED) technology for shunting signals in train traffic. The LED technology uses 50V, but Alstom wants to adapt it for 12V. The LED technology is energy efficient but needs to be adapted for existing signal interlocking by drawing a higher current. READ MORE

3. 7. Analysis of Prerequisites for Connection of a Large-Scale Photovoltaic System to the Electric Power Grid

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

   Author : Fanny Lilja; [2021]
   Keywords : solar energy; large-scale photovoltaic system; PV; Swedish power system; power output fluctuations; voltage quality; voltage variations; reactive power compensation; PSS E; solenergi; storskalig solcellsanläggning; PV; Sveriges kraftsystem; effekförändringar; spänningskvalitet; spänningsvariationer; reaktiv effektkompensering; PSS E;

   Abstract : The deployment of large-scale photovoltaic (PV) systems is rising in the Swedish power system, both in quantity and in system size. However, the intermittent characteristics of the PV production raises questions concerning the stability in the electric power grid, and power output fluctuations from the PV systems can lead to voltage quality issues. READ MORE

4. 8. Transmission Systems for Grid Connection of Offshore Wind Farms : HVAC vs HVDC Breaking Point

   University essay from

   Author : Jesper Larsson; [2021]
   Keywords : Wind power; Offshore wind; Power systems; Transmission; HVAC; Reactive power; HVDC; VSC; MMC; Breaking point; LCOE; NPV;

   Abstract : Offshore wind is rapidly growing and optimised grid connections are crucial for its success. Generally, costs and losses are higher for HVDC at short distances due to the converters, while HVAC costs and losses increase more rapidly with distance due to the ac cables. READ MORE

5. 9. Hardware-In-the-Loop simulation of a small scale prototype of a Wave Energy Converter

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Anton Magnusson; [2020]
   Keywords : Hydrodynamics; Hardware-In-the-Loop; WEC-Sim; Wave Energy Converter; NEMOH; Hydrodynamik; Hardware-In-the-Loop; WEC-Sim; vågenergikonverterare; NEMOH;

   Abstract : Renewable energy sources are a hot topic, both when it comes to climate change and the constant increase in demand of electricity due to population growth and a more electrified society. One such energy source is wave energy - an energy source with great potential but still relatively new with the need for further development. READ MORE

6. 10. Evaluating the agile transformation process from an HR’s perspective : A study to investigate challenges arising for HR and their role in an agile transformation

   University essay from Linköpings universitet/Institutionen för ekonomisk och industriell utveckling

   Author : Felicia Ekman; Sofia Blonde; [2020]
   Keywords : Human Resources HR ; Traditional HR; Agile Transformation; Agile applied to HR; Change Process; HR’s Role;

   Abstract : Today many organisations are transforming from a traditional structure to an agile structure to be able to work more efficiently, meet the fast changes that are continuously happening and make sure not be outperformed by competitors. Agile was from the beginning a set of values and principles designed for software development but it has scaled and today it includes the whole organisation. READ MORE