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This study has been carried out to investigate the possibility of creating a calculation model for performing mechanical dimensioning of power line poles. The model is based on parts of the material that is included in the electricity grid industry guidelines, mainly the publication K32:18 Mekanisk Dimensionering and material from Energiföretagen’s education EBR - Mekanisk Dimensionering. The calculation model has been created in MATLAB and can carry out the dimensioning of four types of pole constructions and visualize the calculated power line by plotting poles, conductor and associated ground profile. The model has been tested for two fictitious power lines and then verified against an existing software that has been anonymized in this report. The result comparison shows that the created model largely achieves the same results as the existing software. The comparison gives an indication that the calculations carried out are reliable and that the model can be used to carry out dimensioning for the types of pole constructions it supports. / Den här studien har utförts för att undersöka möjligheten att skapa en beräkningsmodell för att utföra mekanisk dimensionering av kraftledningsstolpar. Modellen är baserad på delar av det material som ingår i elnätsbranschens riktlinjer, huvudsakligen från publikationen K32:18 Mekanisk Dimensionering samt material från Energiföretagens utbildning EBR - Mekanisk Dimensionering. Beräkningsmodellen har skapats i MATLAB och kan genomföra dimensionering av fyra stolpkonstruktioner samt visualisera den beräknade ledningssträckan i form av stolpar, linbågar och tillhörande markprofil. Modellen har testats för två fiktiva ledningssträckningar och sedan verifierats mot en befintlig programvara som anonymiserats i denna rapport. Resultatjämförelsen visar att den skapade modellen i stor utsträckning uppnår samma resultat som den befintliga programvaran. Jämförelsen ger en indikation om att de beräkningar som genomförs är pålitliga och att beräkningsmodellen således kan användas för att genomföra dimensionering för de stolpkonstruktioner den stödjer.

The project deals with both experimental and simulation analysis of the synchronous machine. The effect of Eddy currents on the impedance is verified experimentally. A core set-up is designed and analysed for the influence of Eddy current in the system. The set-up is altered to reduce the effect of Eddy current and to validate the effect of it on the magnetic inductance.

Manufacturing production systems are increasingly forced to join the path of sustainability regarding their typical room for improvement in terms of clean technology and energy usage. However, implementing these eco-friendly measures on facilities is a double-edged sword since the results are not usually guaranteed and could end up being extra energy wastages. Even though nowadays it is usually made for sequence fixing and training tasks, virtual commissioning comes alternatively into action showing up to test energy optimization attempts preventing the premature execution issues that could happen. This project has developed a VC model of a gantry crane system from a Volvo operation including energy consumption monitoring, aiming to test its suitability on energy optimization tasks. The development has been accomplished following the design and creation methodology through the use of Matlab, Codesys and Simumatik 3D and quantitative results are given specifically from different energy modeling drafts until reaching the closest result to the real system consumption. Once the true to reality model was developed, the optimization test was carried out decreasing the maximum velocity of the system behavior to see the energy consumption variation. This constitutes the ultimate test and its results are discussed coming into the conclusion that the VC model is suitable for energy optimization of the treated operation but would require reconfigurations for aggressive velocity changes.

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This thesis aims to confirm a proof of concept on how to get a robot to pick up a plastic bag containing 3500 plastic caps, cut it open and pour the content, all within a restricted Clean room. The work was executed in an agile way with several ongoing iterative processes in parallel. In the present production line, refilling caps are done manually. For those working in the production line, this task entails heavy lifting and the concern of keeping an eye out for when to refill and how many caps there are in the production line all the time. The result is a working prototype of a robot tool, consisting of a combined clamp and vaccum bag gripper and a self standing linear unit with a blade mounted to it. When tested, this proved to be a functioning solution to the task in hand. The gripper is designed to be mounted on a six axis industrial robot and the blade is placed inside a robot cell. Simulations show that the task is easily done fast enough to supply 5 production lines, producing in full speed,with caps. Solely this unit will not contribute much to a production line if implemented in a factory, since it does not take material flow into consideration. It can merely be seen as a part of a bigger automation chain.

A nanogrid system for supplying neutrino detectors on Antarctica with electricity is designed and built. The nanogrid system could later on be implemented in various configurations where suppling electricity to neutrino detectors is one area of use. The energy system that is acting on site in Antarctica is based around solar panels to provide power to the measuring equipment. However, providing electricity in such a way is not optimal due to its failure in delivering electricity at times. A nanogrid that can stand the demands of constant energy supply to the measurement station are therefore constructed. The energy sources that are integrated into the nanogrid are an innovation in vertical axis wind turbine and photovoltaics. The wind turbine innovation is tested under real conditions for the first time. In the constructed nanogrid, there are also integrated energy storage consisting of battery cells that are coupled together to a coherent unit. Measurement equipment is also implemented for analyzation of acting wind turbine as well as different types of safety equipment for redundancy in the system. In the nanogrid, a rectifier for AC to DC transformation is constructed. An inverter for DC to AC transformation is also implemented for supplying electricity to the equipment that are acting on the grid. The system is tested under real conditions. The whole system could observe partially function and configurated well to the various parts of the whole system. Further optimisation of some parts of the system from the prototype is needed.

This master’s thesis covers the research and development of a local wireless sensor network with capabilities for IoT (internet of things) applications and with the ability to monitor and automatically control a watering system with soil humidity as input. The goal with this thesis was to develop a system where the wireless communication within the local network is suited for low power and lossy networks (LLN). The system was to be controlled and monitored from a user interface which is available from the internet. A system was developed with a wireless network with a suited underlying network stack with protocols that was fitted for the constrained environment. The nodes send values to a website with a UI (user interface) where values can be monitored and the user can control the system and send values to specific nodes within the system. The sensor nodes communicate with protocols developed for low power networks and an edge router was built for the purpose of routing this network to the internet. Research in the internet protocol suite has come a long way and a large variety of protocols has been developed to fit almost every set of nodes with different battery lifetime, processing power, and memory size. This thesis shows that the communication stack can be modelled with suited protocols to be satisfactory for different internet of things applications with high energy efficiency.

In power system, when a local network with over head lines is replaced by a network laid underground, itchanges the characteristics of the material used and gives an opportunity for an updated sizing. The goal withthe project was to present a proposal of a reconstruction of a old local network to a modern local network andpresent a selective coordination plan for all the branches in the new network. The methods that are used isthe Velanders method for interleaver of the maximum power, sizing according to “SvenskStandard”(Swedish Standards) and curve fit of trip curves to present digital produced selective coordinationplan. The new underground local network delivers a better electrical quality, that fulfills the triggerconditions and obtains a good selective coordination. / Inom elkraftsystem, när ett luftburet lokalnät ersätts med ett markförlagt förändras förutsättningarna i formav materialets egenskaper och det ger möjlighet för uppdaterad dimensionering. Målet var att presentera ettförslag på ombyggnation av ett äldre luftburet till ett modernare markförlagt lokalnät och presenteraselektivplaner för samtliga grenar av det nya nätet. Metoder som använts är Velanders metod försammanlagring av maxeffekter, dimensionering enligt Svensk Standard och kurvanpassning avutlösningskurvor för att presentera digitalt framställda selektivplaner. Det markförlagda lokalnätet levereraren bättre elkvalitet, uppfyller utlösningsvillkoret och erhåller god selektivitet.

While technology develops, many devices are becoming portable and battery driven. These devices are among us and are unconditionally a part of today’s society. The usage and the surrounding environment of these devices can vary depending on the intended functionality and purpose. Varying environmental conditions impact the devices charging method. This report covers the development and implementation of a printed circuit board. The circuit board is going to be used as a prototype for future testing for a portable device which the company VectorizeMove [1] is developing. The circuit board contains multiple charging methods and a voltage regulation system. The charging methods include inductive charging and micro USB charging. The charging systems are designed for a lithium polymer battery which are charged through different phases which prevent damage to the battery. The voltage regulation system is implemented to test and ensure a stable voltage output for the components included in the company's device. / Medan teknik utvecklas blir många bärbara enheter batteridriven. Dessa enheter är bland oss och är ovillkorligen en del av dagens samhälle. Användningen och omgivningen av dessa enheter kan variera beroende på avsedd funktionalitet och syfte. Varierande miljöförhållanden kan påverkar laddningsmetoden för dessa enheter. Denna rapport omfattar utveckling och genomförande av ett kretskort. Kretskortet kommer att användas som prototyp för framtida testning för en bärbar enhet som företaget VectorizeMove [1] utvecklar. Kretskortet innehåller flera laddningsmetoder och ett spänningsregleringssystem. Laddningsmetoderna inkluderar induktiv laddning och micro USBladdning. Laddningssystemen är konstruerade för ett litium polymer batteri som laddas genom olika faser som förhindrar skador på batteriet. Spänningsregleringssystemet implementeras för att testa och säkerställa en stabil spänningsutgång för komponenterna som ingår i företagets enhet.