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585 Uppsatser om Smart grid - Sida 8 av 39

Smart Grid

Det här arbetet innefattar webbtillgänglighet med avseende hur väl ett antal utvalda universitet och högskolor följer de riktlinjer för personer med läs- och skrivsvårigheter. Problemet med att inte ha en webbtillgänglig webbplats är att en stor grupp av personer som går miste om innehållet. Det är dessutom inte bara personer med läs- och skrivsvårigheter som blir drabbade, utan det är även personer med andra livssituationer som drabbas. Syftet med arbetet är att ta fram rekommendationer och finna lösningar som gör att universitet och högskolors webbplatser blir tillgängliga för alla. Analysen som görs i arbetet är baserad på W3C WAI:s riktlinjer om tillgänglighet och är avgränsad till användare med dyslexi.

Beredning av lokalnät i landsbygd

In this thesis a rural network in Norrbotten, Sweden, has been to designed and planned with the purpose of improving distribution reliability by exchanging existing overhead lines with underground cables. General network design considerations are discussed as well as the ones for the specific low voltage grid. During the design phase the maximum power of domestic consumers has been estimated using Velander?s method. Currents, voltage drop and impedance of the network have been calculated and fuse operation and selectivity has been considered.

Godshantering med Scania Interactor

This thesis is about making a support for barcode readers and RFID readers on a computermounted in heavy vehicles. The computer has several applications designed for heavyvehicles such as an order handling application. The goal was to suggest an architecture toimplement a support for the readers. The architecture should be independent of whichmanufacturer who has made the reader hardware that was connected to the computer.At first a theoretically study was made around RFID technology and standards for thetransport and supply sector. Then the architecture was developed and a demo implementationwas made.The conclusion of this thesis is to implement support for barcode readers with a wedgeapplication.

Interaktiva radiotjänster : - en applikation för mobila Androidenheter

The increase in sales of the so called smart phones has meant that there has also been a requirement to determine new applications for which they are suitable. One of the largest platforms for smart phones is Android and the task of this thesis is to develop an application for a company that wishes to create interactive radio for the Internet. In addition to ordinary radio features, the company would like the application to be able to present images and a small web page called Canvas. The overall aim ,of this thesis, is to build a fully functional media player that is compatible with the majority of the commonly used Android based mobile units. To fulfill the overall aim, nine explicit goals were targeted.

Hållbar utveckling i hem- och konsumentkunskap: Det var smart att jobba om S.M.A.R.T.-mat

Syftet med den här undersökningen är att studera, beskriva och analysera högstadieelevers förståelse om hållbar utveckling i ämnet hem- och konsumentkunskap. Två forskningsfrågor har formulerats för att besvara syftet. Undersökningen har genomförts med hjälp av både enkäter och intervjuer och för att tolka resultatet har en innehållsanalys gjorts. Där kunde fyra kategorier urskiljas: Mat och miljömärkning, Jämställdhet, Etik, normer och värderingar samt Energi och miljöproblem. Kategorierna är åtskilda men inte så distinkt eftersom de överlappar varandra i vissa avseenden.

Barnaga - unga vuxnas attityder

The purpose of this study is to examine young adults', 18-19 years old, attitudes towards corporal punishment and with the help of social constructionism, grid-group theory and relevant concepts analyze the results and compare it with previous research. The research questions introduce various factors such as gender, origin and personal experiences of corporal punishment that may affect the attitudes. In order to fulfill the purpose and answer the research questions, a quantitative research method has been selected. There was 118 participants in the survey. The study was conducted by means of surveys in high schools in Örebro. Social constructionism made us realize how the community, perceptions and expectations might influence attitudes. Grid-group theory gave us an insight into how different family structures may explain why attitudes toward corporal punishment of children differ between individuals.

Projektering för återupptagandeav elproduktion vid småskaligtvattenkraftverk

Due to historically low prices for electricity in Sweden, many small-scale hydropowerplants were closed down. A small-scale power plant has more or less the samemaintenance costs as larger plants, but doesn?t generate as much income. Today?sincreasing price for electricity in combination with a desire for renewable energysources makes small-scale hydropower interesting again.

USA som hård, mjuk och smart makt -En studie av amerikansk utrikespolitik i mellanöstern

This essay is built upon the thoughts of Joseph S. Nye concerning power, and the different ways of exercising that power. The characteristics of Nye's theories are the thoughts about the second face of power, or what he describes as the soft power. The essay seeks to examine what kind of power the US has been in their work for non-proliferation and democracy promotion in the Middle East. It also seeks to find what it is that makes the US to choose to exercise the specific powers.

Verktyg för värdering av miljöpåverkan vid investeringar i det svenska elstamnätet

During the period 2009-2013, investments in the Swedish national grid increase by a factor of ten compared to previous years. In order to fulfil their mission to manage the national grid in a safe, efficient and environmentally sound way, Svenska Kraftnät (Swedish National Grid) needs to take all these perspectives into account while planning new investments. To compare and relate perspectives of technology, economy and environment the same yard stick must be used. That yard stick is commonly money. A problem arises however as environmental issues are difficult to price.The purpose of this master?s degree project was to develop a tool for evaluation of environmental impact related to investments in the Swedish national grid.

Smarta lokala energisystem, Vision-Teknik-Tillämpning

The energy sector is facing an impending paradigm shift. Today?s technology enables the end-user to generate their own energy locally at home. Furthermore, recently developed storage technologies make it possible to balance energy demand with stored energy and integrate district heating with the local power grid. This means that in the future heat and electric power will interact and energy flows is converted over energy boundaries.

Metoder för kartläggning och analys av nätförluster i lågspänningsnät

An important process for grid companies in order to reduce power losses in electricity distribution grids is to figure out where and how they appear. This report describes the factors that cause power losses in low voltage distribution grids and methods for how they could be measured and analyzed. Measurement data for consumed and injected energy were collected for twelve low voltage distribution grids owned by Gävle Energi AB in order to analyze the size of the power losses and how the measurement uncertainty affects the collected data. Then models of three of the grids were created in MATLAB in order to analyze the data and the power losses were calculated to be compared to the collected data. Curve fitting were also used as a method in order to analyze the power losses from collected data.The results show that the losses in the studied grids are low.

Projektadministration som målstyrning : En fallstudie hos Trafikverket

Projektadministration är ett administrativt styrmått som används i projektverksamhet. Detta genom att utfästa en procentuell målsättning på hur stor del av de totala projektkostnaderna som får utgöras av interna administrationskostnader. I detta examensarbete undersöks vad som saknas för att göra projektadministration till ett mer funktionellt styrmått samt under vilka förutsättningar det är lämpligt att använda. Projektadministration analyserades med hjälp av SMART ramverket. Ramverket beskriver fem kriterier som ett välutformat mål skall uppfylla och i detta examensarbete undersöks hur väl projektadministration uppfyller dessa.Examensarbetet har en deduktiv ansats och genomfördes i form av en fallstudie.

Utvärdering av Falköpings kommuns Informations säkerhet

A student at the Technical University in Jönköping was given an assignment from Falköping municipality. The assignment was to evaluate their IT systems 'users' awareness of information security and even present suggestions for IT-Users to improve their information security within Falköping municipality.Falköping municipality consists today of seven administrations. The target groups for the study of the information security are a pilot group consisting of 30 IT Users and four different managers from various administrations within Falköping Municipality.The purpose of this work is mainly to indicate an understanding of the importance of the information security knowledge among IT Users in Falkopings municipality, mainly those who use their smartphones and tablets for work-related activities.This work aims to answer the following questions:? How wide is the awareness of information security among municipality's IT users?? How can information security improve among the municipality's IT users?Theories that work consists of are mainly what information security is, how it is handled and the threats and risks that may create problems for the municipality, basically when IT Users use their smart phones and tablets.The Work Implementation started with sending surveys to a pilot group of IT- system users and the student even interviewed four general managers working in Falköpings municipality. Both the questionnaires results and interviews results are presented in diagram and text.The result from both surveys and interviews was very positive and it shows that the municipality investigated IT-Users are very aware and have knowledge about information security, when they use their smart phones and tablets.

Personvalsreformens konsekvenser: en studie av de svenska partierna ur ett Grid-Group perspektiv

Syftet med denna studie har varit att undersöka de svenska politiska partiernas åsikter gällande den förstärkning av personvalsinslaget som infördes år 1998 samt att fastslå hur dessa ställer sig gentemot en ytterligare reformering av valsystemet. Valreformer är historiskt ett politiskt område inom vilket det förekommit stora motsättningar enligt den traditionella ?höger vänsterskalan?. I studien analyseras huruvida dessa kvarstår efter den senaste reformen. För att ytterligare studera partiernas åsikter har dessa även analyserats i enlighet med Grid-Group teorins analysverktyg.

Inställning av automatikermed spänningsreglerande verkani det sydsvenska 400-130 kV nätet

The voltage level in the power grid varies due to variations in load and production. Normally these variations are manageable, but they may be excessively large during a disturbance. If the voltage is too high it may damage the equipment in the grid and too low voltages may cause problems like voltage instability. The magnitude of the voltage variation depends on the short circuit power capacity of the point of interest.This problem may become lore prominent due to automatic voltage regulation that acts on shunt reactors and shunt capacitors. When the shunt reactor is connected or disconnected to the grid it may cause such large changes in the voltage that the shunt reactor starts hunting.

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