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The proliferation of renewable energy resources is imposing demands on electric distribution infrastructure that traditional low-frequency transformers are not equipped to fulfill. Conventional transformers operate with high energy efficiency but offer zero active controllability with no inherent power quality management and support for hybrid power flows. The solid state transformer (SST), a powe
Our research aims to develop an intelligent control system for optimizing the operation of lighting systems for a jogging track in the countryside by using adaptive control methods, and optimization of built-in lighting control. Through this, lighting systems will be optimized, energy consumption will be minimized and the lighting system will be adapted to be able to handle a larger amount of loca
In the context of a decarbonized future where stringent carbon dioxide (CO2) emissions constraints are imposed on vehicles, hydrogen emerges as a promising solution to address emissions directly at the point of use. This chapter explores the potential of using hydrogen to power vehicles, particularly in the context of heavy-duty (HD) internal combustion engine (ICE) applications. Hydrogen vehicles
The high penetration of wind power is increasing the intermittency and power variability into the existing power grid. This is forcing industries to look for optimal configurations in order to improve their systems performance and minimize these effects from the power production method. Studies show that there are different ways of reducing the power variability and therefore stabilize the energy
ADVANCING SUSTAINABLE SOLUTIONS We use energy in almost every aspect of our lives. Yet, often, we do not know the source of electricity that powers our homes or heats our food. In this episode, we explore energy communities as a form of decentralised and democratic energy production. Community energy sees people coming together to take control of their energy needs, by finding alternative ways to
I takt med att världen blir mer medveten om hur människans beteende påverkar jordens klimat, ställs också högre miljömål. Ett hållbart energisystem är en del av dessa miljömål och att övergå till enbart förnybara energikällor är ett verktyg för att uppnå dessa. Övergången till endast förnybara energikällor riskerar dock att medföra problem, bland annat så kallad effektbrist. Effektbrist är inget nAs the world becomes more aware of how human behavior affects the earth’s climate, higher environmental goals are also set. A sustainable energy system is one part of these environmental goals, and switching to only renewable energy is a tool to reach such goals. However, a system with only renewable energy can be vulnerable at time periods of reduced production of electricity, with a subsequent r
Power-to-X (PtX) is an emerging approach in decarbonizing industries hard to electrify, and is in many cases requiring stable hydrogen supply to maximize production. Hydrogen is produced via electrolysis and requires large amounts of electricity, which can be expensive, especially when considering highly fluctuating electricity prices. One solution in reducing electricity related costs is to integ
Electric power grids have a limited capacity for safe and reliable transfer of power. Due to the ongoing large-scale expansion of variable renewable energy sources, such as wind and solar, there is a growing need for rapid gridcapacity increase.This thesis explores methods for improving and expanding grid capacity through control of converter-interfaced energy resources, including wind and solar pElectric power grids have a limited capacity for safe and reliable transfer of power. Due to the ongoing large-scale expansion of variable renewable energy sources, such as wind and solar, there is a growing need for rapid gridcapacity increase.This thesis explores methods for improving and expanding grid capacity through control of converter-interfaced energy resources, including wind and solar p
En sammanställning av större geoenergianläggningar i Sverige har i samband med detta arbete gjorts. Arton anläggningar med bergvärme, borrhålslager, högtemperaturlager samt akfiverlager ingår i denna. Utifrån information om dessa anläggningars drift har rekommendationer för mätpunkter getts för att bättre säkra mätning och driftuppföljning. Geoenergi är Sveriges tredje största förnybara energikällShallow geothermal energy is the third biggest renewable source of energy in Sweden. Low-temperature energy stored in the ground and groundwater is collected by a ground heat exchanger with circulating brine and a ground source heat pump, GSHP. It is possible to extract both heating energy and cooling energy in these systems; in the winter the earth is utilised as a heat source, and in the summer
This thesis tries to answer the question of how to properly trade on an intermittent market using a theoretical storage and estimates attainable profit of such a setup. This have been done through evaluating different storage alternatives, analyzing market trends, investigating associated costs for the operation and simulating possible outcomes. Trading with certain rules, an algorithm has been de
To reduce carbon emissions, logistics companies take measures to achieve the climate neutrality target to reach “Green Logistics.” As one of the valuable measures, gradually replacing present fossil fuel vehicles with electric vehicles for parcel delivery and linehaul transportation is scheduled at the terminals of logistics companies. The charging load of a fully electrified vehicle fleet challen
Materials chemistry research focus on solid materials, their synthesis and the resulting properties. This may be for investigating new, unknown materials or to design a material for a particular purpose. We usually go all the way down to the crystal and atomic structure to understand the properties of the material. The subject includes hybrid materials, where inorganic, polymer or biological mater
https://www.cas.lu.se/research/materials-chemistry - 2026-06-25
