Multi-Stage-Battery for Stand Alone Applications

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Recording of Wednesday, June 19, 2024 | The smarter E Europe 2024 | Conference Program | Language: English | Duration: 14:19 .

Cost-Efficient Multistaging with Semiconductors, Highlighting Advantages and Practical Applications

The associate from Peter Adelmann's team, stepping in for Julius, delves into cell multistaging. The presentation covers the motivation behind this concept and its basic principles. Cell multistaging is an innovative alternative to traditional inverter systems using costly copper coils, leveraging cheaper semiconductors like MOSFETs instead. These components are not only more cost-efficient due to ongoing technological advancements but also require effective management via microcontrollers. In practice, cell multistaging involves arranging cells with MOSFET switches that control charging and discharging processes by connecting or bypassing cells as needed. This method provides flexibility in generating specific voltages required for various applications. Addressing the advantages of this approach over conventional systems, it highlights how the dynamic nature of voltage ranges in batteries can be better managed through multistaging. By adding more cells and utilizing efficient switching circuits controlled by microcontrollers with IO expanders, a stable output can be maintained despite fluctuations in individual cell voltages—an essential feature for reliable power system performance.

Automatisierte Zusammenfassung durch AI Conver

Julius Bäurle
Electrical Engineer in System Development
Institute for Decentralized Electrification, Entrepreneurship & Education GmbH & Co. KG
Germany

While solar modules are getting cheaper, storage is the key factor that determines the cost of the system. Besides new battery technologies, other forms of storage are available.

Speaker

Prof. Dipl.-Ing. Peter Adelmann
Director
id-eee Institute
Germany

To Talk

Speaker

Dr. Sylvain Brimaud
Scientist and Team Leader
ZSW (Centre for Solar Energy and Hydrogen Research)
Germany

To Talk

Speaker

David Gögelein
PhD Student
Technical University of Ulm
Germany

To Talk

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Photovoltaic prices have fallen continuously in recent years - a trend that should translate into a growing market for off-grid solutions. Declining costs are crucial for rural electrification in particular, making sustainable energy supply economically viable in remote regions. However, so far many of these price advantages have not yet reached the people that need them most. Do existing framework conditions to foster rural electrification still work in this new market reality? Which measures are needed to ensure that cost reductions reach our target group? This session discusses strategies for improving the availability of low-cost off-grid solutions, financing and innovative business models. A look at successful practical examples shows which political, economic and technological levers need to be pulled to make off-grid PV accessible on a large scale.

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