Selaus koulutusohjelman mukaan kokoelmassa VäitöskirjatSchool of Energy Systems, Sähkötekniikka
Aineistot 21-40 / 45
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Improving the design of cellular networks beyond 5G for smart grids
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 22.09.2023)In the last decade, wireless technologies have emerged to support vertical applications. For instance, many wireless communication technologies are becoming key enablers of specialized smart grid applications. However, ... -
In situ hydrogen production in power-to-food applications
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 04.02.2022)Technologies capable of coupling sustainable generation of energy and production of valuable products are required to shift the focus from a fossil economy to a renewablebased and circular economy and to confront environmental ... -
In-depth analysis of the global power infrastructure—Opportunities for sustainable evolution of the power sector
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 27.11.2020)Over the decades, the power sector has continuously evolved, and the strategy used to provide its service has changed dramatically over time and continues to do so. Therefore, it is of paramount importance to analyse in ... -
Intelligent Reflecting Surfaces and Advanced Multiple Access Techniques for Multi-AntennaWireless Communication Systems
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 24.10.2022)Multiple-input multiple-output (MIMO) is an indispensable technology for deploying the pervasive connectivity sought for fifth-generation (5G) and beyond communication systems. By relying on a large number of antennas, ... -
LCL Filter Designs for Parallel-Connected Grid Inverters
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 04.12.2018)Power generation has become more dispersed as a result of the increasing popularity of the renewable energy sources, which interface with the utility grid with power electronic converters. Higher power levels can be achieved ... -
Modeling and Analysis of a High-Speed Solid-Rotor Induction Machine
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology, 28.04.2020)Over the last few decades, high-speed electrical machines have become more popular than ever before because of the rapid development of power electronics, magnetic materials, and control engineering. Among all the machine ... -
Modeling and system analysis of electrically driven mechatronic systems
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 28.11.2022)A mechatronic system consists of mechanics, power electronics, and control electronics. Thus, designing a mechatronic system requires multidisciplinary knowledge. As the capabilities of microprocessors have increased and ... -
Modelling and Disturbance Compensation of a Permanent Magnet Linear Motor with a Discontinuous Track
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 11.06.2019)It is very common that industrial applications require linear motion in some part of the process, especially in transportation of products from place to place. Traditional technologies to produce short-distance linear ... -
On Load Modeling of Electric Vehicles—Energy System Viewpoints
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 12.01.2024)Customer load modeling is a fundamental component of many business practices in the energy industry, particularly in the electricity distribution and retail sectors. The increasing numbers of electric vehicles (EVs) and ... -
Open data in distribution network asset management
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 03.11.2023)Climate change and the energy transition are causing major changes to the distribution network environment. The electrification of society raises expectations for clean, reliable, and affordable electricity supply. Meeting ... -
Optimizing the specific energy consumption of vacuum filtration
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.12.2019)Vacuum filtration is applied in solid-liquid separation in a wide variety of industrial processes for instance in the mining, chemical, and paper industries. The main contributor to the considerable energy consumption of ... -
Power-based electricity distribution tariffs providing an incentive to enhance the capacity effectiveness of electricity distribution grids
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 11.02.2022)Energy transition is reshaping the electricity sector at a fast pace. As a consequence, electricity distribution systems are facing profound changes because also customer loads are undergoing a significant development. In ... -
Promoting local renewable energy production with energy communities and serious games
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 26.01.2024)Local, small-scale energy production with renewable energy like solar energy is becoming more and more commonplace as people seek methods to reduce their reliance on grid energy. Besides individual households investing in ... -
Reduction of non-circulating bearing currents by electrical machine design
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 22.09.2023)Electrical machines and drive systems play a crucial role in industrial processes and everyday life. Electrical drive systems that are capable of operating in the variable speed mode allow applying electric motors for the ... -
Socioeconomic impacts of cost optimised and climate compliant energy transitions across the world
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 17.06.2022)There are undeniable signs from all over the world demonstrating that climate change is already upon us. Numerous scientific studies have warned of dire consequences should humankind fail to keep average global temperatures ... -
South Asia’s Energy [R]evolution – Transition towards defossilised power systems by 2050 with special focus on India
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 09.02.2023)Current energy systems, with fossil fuels in the midst, are completely unsustainable on all accounts of environmental, social, and economic criteria. Consequently, global energy systems are undergoing transitions, primarily ... -
Submersible permanent-magnet synchronous machine with a stainless core and unequal teeth widths
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 30.06.2021)In recent years, permanent magnet synchronous machines (PMSM) have gained popularity owing to their excellent performance compared with other kinds of electrical machines in numerous applications. Furthermore, advances in ... -
Sustainable energy transition for Pakistan: Assessing the role energy, water supply, social and gender equity dimensions
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 15.12.2023)The main aim of this dissertation is to evaluate the energy, water and social dimensions of a 100% renewable energy system in Pakistan. Techno-economic aspects of the sustainable energy transition are assessed by modelling ... -
Synchronous Reluctance Motor With an Axially Laminated Anisotropic Rotor in High-Speed Applications
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 27.04.2023)Electrical drives are applied everywhere in the world starting from heavy industries and ending with home appliances. Nowadays, the demand for high-speed machines is constantly growing, whereas their design sets a number ... -
Technology analysis of magnetically supported rotors applied to a centrifugal compressor of a high-temperature heat pump
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 13.05.2022)Despite decades of development of high-speed motors, challenges and limitations concerning high-speed powertrains and motors in industrial applications remain. Improved reliability and a smaller footprint together with ...