Fakultät Elektrotechnik und Informationstechnik
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Institute
Effiziente Energienutzung ist eine bestehende Problematik, welche nicht nur Privathaushalte, sondern auch Institute und Unternehmen betrifft. Die Thematik, mit der sich diese Bachelorarbeit beschäftigt, ist intelligente Regelung von Wärmeenergie für Nichtwohngebäude. Das Ziel hierbei ist die Einsparung von Energie und die daraus folgenden Kosten. Hierfür wird mittels theoretischer Arbeit, Recherche für vorhandene Konzepte durchgeführt. Mit MATLAB Simulink soll anschließend ein eigenes Konzept für eine intelligente, vorausschauende Regelung aufgebaut und simuliert werden. Dabei soll die Raumlufttemperatur eines Raumes in einem Nichtwohngebäude, mithilfe eines modellbasierten prädiktiven Reglers (MPC), auf eine bestimmte Wunschtemperatur geregelt werden. Zum Schluss wird diese mit einer herkömmlichen Regelung (PID-Regelung) verglichen. Als Ergebnis kam dabei heraus, dass sich bei der vorausschauenden Regelung, im Vergleich zur herkömmlichen Regelung, ein deutlich besserer Temperaturverlauf ergibt. Die Raumtemperatur liegt im gewünschten Sollbereich, jedoch sind in den Ergebnissen keine nennenswerten Energieeinsparungen zu sehen. Durch zukünftige Erweiterungen in den MPC, sollte dies aber definitiv möglich sein. Deshalb und aufgrund der genaueren Regelung der Temperatur, wird eine Empfehlung zur Anwendung von MPC-Reglern an Nichtwohngebäude abgegeben.
In this paper, we propose a novel method for real-time control of electric distribution grids with a limited number of measurements. The method copes with the changing grid behaviour caused by the increasing number of renewable energies and electric vehicles. Three AI based models are used. Firstly, a probabilistic forecasting estimates possible scenarios at unobserved grid nodes. Secondly, a state estimation is used to detect grid congestion. Finally, a grid control suggests multiple possible solutions for the detected problem. The best countermeasures are then detected by evaluating the systems stability for the next time-step.
Since its first edition in 2008, the Workshop on Metallization and Interconnection for Crystalline Silicon SolarCells has been a key event where knowledge in the critical fields of crystalline silicon solar cell metallization andinterconnection is shared between experts from academia and industry. It has become a highly recognized event forthe quality of the contributions, the lively Q&A sessions, and the exceptional networking opportunity.The situation with the Covid-19 pandemic made organizing the 9th edition as an in-person event impossible andforced us to reconsider the event format. The event took place virtually on October 5th and 6th 2020. We used aninnovative online platform that enabled not only presentations followed by Q&A but also more informal interactions,where participants could see and talk directly to other participants. 120 experts from 22 countries took part andattended 21 contributions presented live. In spite of a few technical glitches, the workshop was successful and thegoals of exchanging on the state-of-the-art in research/industry and connecting experts in the field were achieved.All presentations are available on www.miworkshop.info as .pdf documents. These proceedings contain asummary of the 9th edition (MIW2020) and peer-reviewed papers based on the workshop contributions. The organizerswish to thank the members of the Scientific Committee for the time spent reviewing the MIW2020 abstracts andproceedings. The organizers also wish to thank again the sponsors and supporters for their financial contributionswhich made the 9th Workshop on Metallization and Interconnection for Crystalline Silicon Solar Cells possible.
Summary of the 9th workshop on metallization and interconnection for crystalline silicon solar cells
(2021)
The 9th edition of the Workshop on Metallization and Interconnection for Crystalline Silicon Solar Cells was held as an online event but nevertheless reached the workshop goals of knowledge sharing and networking. The technology of screen-printed contacts of high temperature pastes continues its fast progress enabled by better understanding of the phenomena taking place during printing and firing, and progress in materials. Great improvements were also achieved in low temperature paste printing and plated metallization. In the field of interconnection, progress was reported on multiwire approaches, electrically conductive adhesives and on foil-based approaches. Common to many contributions at the workshop was the use of advanced laser processes to improve performance or throughput.
