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M. Sc. Felix Strehle

Research Associate

Alternative Energy Systems

Room: 206
Phone: +49 721 608 - 42708
Fax: +49 721 608 - 42707
felix strehleSfe5∂kit edu

Karlsruher Institut für Technologie (KIT) Campus Süd
Institut für Regelungs- und Steuerungssysteme
Geb. 11.20 (Engler-Villa)
Kaiserstr. 12
D-76131 Karlsruhe

Curriculum Vitae

Born 1992 in Aalen; A levels 2011 at Theodor-Heuss Gymnasium in Aalen.

Afterwards, bachelor’s program in electrical engineering and information technology at Karlsruhe Institute of Technology (KIT) with exchange semester at the Norges teknisk-naturvitenskapelige universitet (NTNU) in Trondheim; bachelor’s thesis at Institute of Control Systems (IRS) about the composition of a battery management system and the implementation of algorithms for lithium-ion batteries (2014); IPP award for the bachelor‘s degree of the faculty of electrical engineering and information technology.

From 2015, master’s program in electrical engineering and information technology at KIT with specializations in system theory and control engineering; internship and practical work in the field of electrical and hybrid vehicles at Robert Bosch GmbH in Schwieberdingen/Tamm; master’s thesis at IRS about the „Modeling of Multi-Carrier Energy Distribution Systems with Port-Hamiltonian Systems“ (2017).

Since November 2017 research and teaching assistant at IRS in the field of alternative energy systems.

Private interests: various sports (particularly athletics), traveling, hiking


Open Theses
Title Type
Master Thesis

Current Theses
Title Type Person in Charge
Bachelor Thesis

Michael Nguyen


Control-Oriented System Design of Multi-Carrier Energy Systems in Cellular Structures
Multi-carrier energy system in cellular structure

Multi-carrier energy systems include energy grids as well as producers, consumers, storage and converter devices in and between the electricity, gas and heat sectors. As part of a long-term (inter)national energy transition with increasing integration of renewable energy sources (RES), their overall systemic consideration plays an important role. The coupling of currently largely independent energy systems (e.g. through power-to-gas plants, fuel cells, combined heat and power plants) offers more flexibility for a robust and efficient energy supply and a possibility to limit the development of RES and grids to a socially acceptable level.

Cellular structures are a way of structuring the complex problem of a cross-sectoral energy system into local sub-problems, so-called "energy cells". They also depict the decentralized nature of the producers, consumers, storage and converter devices that are spatially distributed throughout the energy system.

Control-oriented system design deals in this work with the question of how control concepts and system design, i.e. the definition of topology (network structures), components and interfaces, together can contribute to meeting control requirements such as stability. Due to the sparsely research system theory in the field of multi-carrier energy systems questions regarding existing and desired properties of energy cells will be investigated from a control-engineering perspective.


A Port-Hamiltonian Approach to Plug-And-Play Voltage and Frequency Control in Islanded Inverter-Based AC Microgrids.
Strehle, F.; Malan, A. J.; Krebs, S.; Hohmann, S.
2019. 58th IEEE Conference on Decision and Control (CDC), Nice, F, December 11-13, 2019
Passivity-Based Plug-and-Play Voltage and Frequency Control in Islanded Inverter-Based AC Microgrids.
Strehle, F.; Malan, A. J.; Krebs, S.; Hohmann Sören.
2019. 58th IEEE Conference on Decision and Control, Nice, F, December 11-13, 2019, 4648–4655, IEEE, Piscataway (NJ). doi:10.1109/CDC40024.2019.9029272
A Scalable Port-Hamiltonian Approach to Plug-and-Play Voltage Stabilization in DC Microgrids [submitted].
Strehle, F.; Pfeifer, M.; Krebs, S.; Hohmann, S.
2019. IFAC-PapersOnLine [submitted]
Towards Port-Hamiltonian Modeling of Multi-Carrier Energy Systems: A Case Study for a Coupled Electricity and Gas Distribution System.
Strehle, F.; Pfeifer, M.; Kölsch, L.; Degünther, C.; Ruf, J.; Andresen, L.; Hohmann, S.
2018. IFAC-PapersOnLine, 51 (2), 463–468. doi:10.1016/j.ifacol.2018.03.078