In the past, power systems were dominated by generators with large, massive rotors that lead to generated inertia, which play an essential role in stabilizing the grid. These generators act as short-term storages, making the grid robust against load changes, ensuring stable voltage, and providing sufficient current to trigger fuses in case of faults such as short circuits.

However, future power systems will be dominated by power electronics, which have rapid dynamics and lack any inertia. Furthermore, electronics cannot provide short-circuit currents or overload, which is required for turning on many devices and for the grid protection system. This shift can lead to weak grids, i.e., grids with low overload potential, instable voltages and oscillations, and cannot provide sufficient current to trigger fuses in the event of faults like short circuits.

Our objective within the framework of the project is to develop methods to address the challenges posed by power electronics. This includes providing grid services with power electronics, such as frequency and voltage control, to ensure the stability and reliability of future power systems.

Our work in the project can be divided into two topics:

This topic focuses on developing and evaluating modular power electronics topologies and adaptive control strategies to ensure stability and provide essential grid services in rural grid sections characterized by renewable energy infeed and power electronic loads, such as electric vehicle chargers. The development involves creating grid impedance-adaptive power electronics and control strategies that stabilize voltage and filter out inconsistencies. Key topics addressed include:

• developing grid impedance-adaptive power electronics and control strategies for voltage stabilization and filtering
• considering the infeed phase
• detecting and damping parasitic feedback from other power electronics in the grid
• estimating grid impedance in accordance with IEC 61000 standards

AsimutE

https://www.interreg-oberrhein.eu/projet/asimute-intelligenter-eigenverbrauch-und-speicherung-fuer-eine-bessere-nutzung-von-energie/)

01 October 2023 until 31 January 2027

• Université de Haute-Alsace - Institut de Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS)   Projektträger
• Karlsruher Institut für Technologie (KIT) - Deutsch-Französisches Institut für Umweltforschung (DFIU)
• Hochschule Offenburg
• Hochschule Furtwangen - Institut für Smart Systems (ISS)
• Centre National de la Recherche Scientifique (CNRS) - Laboratoire Image Ville Environnement
• Hochschule Kehl
• Albert-Ludwigs-Universität Freiburg - Professur für Public und Non-Profit Management
• Fachhochschule Nordwestschweiz FHNW - Institut für Elektrische Energietechnik
• Schweizerische Eidgenossenschaft (NRP) X
• Kanton Basel-Stadt
• Kanton Basel-Landschaft
• Kanton Aargau
• Kanton Jura
• Alter Alsace Energies
• Badenova
• Electricité de France (EDF) Direction Action Régionale Grand Est
• HAGER
• Voltec-Solar
• Pfalzwerke Netz AG
• Primeo Netz AG
• Solextron
• TRION-climate
• Pôle Fibres-Energivie
• Tuba Mulhouse

Prof. Dr.-Ing. Stefan Götz
Building 11, Room 376
Phone: 2080
Mail: stefan.goetz(at)rptu.de

Prof. Dr.-Ing. Daniel Görges
Building 12, Room 266
Phone: 2091
Mail: daniel.goerges(at)rptu.de