Energy and Society

Sustainability is a major concern to today’s society. A central issue is how our future energy system can be based on renewable energy sources exclusively. Energy storage is gaining importance not only in this area, but also in the electric mobility sector.

For this spectrum of applications, the Alternative Energy Systems Group develops innovative methods relating to energy grids and battery systems.

Energy Grids

In the course of the energy transition in Germany and other parts of the world, conventional power plants are replaced by a large number of regenerative energy sources, in particular photovoltaics and wind power plants. These are mainly installed on the distribution grid level. The power generated on this level can only be distributed reasonably when the grid operators extend their grids. In addition, the bad predictability of renewable power generation, the high slew rate, and lacking controllability of the regenerative production capacity require a massive increase in storage capacities.

By using energy converters, such as power-to-gas units and combined heat and power plants, the electric, gas, and heat distribution grids can be coupled. In this way, the above challenges can be mastered effectively. However, control technologies still remain to be developed for the resulting multimodal distribution grids.

The Alternative Energy Systems Group, hence, conducts research along the complete design process of control systems for innovative methods in multimodal energy distribution systems.

Battery Systems

Due to the volatile character of renewable energies, intermediate storage of this energy in e.g. lithium-ion batteries is of crucial importance. Battery systems for electric energy storage also gain importance in electric mobility and entertainment electronics, the objective being to meet increasing demands in terms of range and availability.

To ensure safe and effective operation of battery systems, battery management systems (BMS) are applied. Frequently, they are based on imprecise heuristic methods, such as counting procedures to estimate the battery state. The IRS designs model-based methods for the automatic identification of the physical state of the battery during operation. When interconnecting a large number of cells, conventional BMS based on central architectures quickly reach their limits. For an efficient use of battery systems, IRS therefore studies new decentralized and distributed approaches to battery monitoring and control.

Staff

	Lukas Kölsch Research Associate Research Interest: Stability and Resilience		Pol Jané Soneira Research Associate Research Interest:
	Jona Maurer Research Associate Research Interest: Distributed Control		Martin Pfeifer Research Associate Research Interest: State Estimation
	Albertus Malan Research Associate Research Interest:		Oliver Stark Research Associate Research Interest: Parameter Identification
	Felix Strehle Research Associate Research Interest: System Design

Student Assistants

Nicolai Tschuch

Implementierung eines MPC für gekoppelte Strom- und Wärmenetze

Silja Viola Pfeiffer

Automatisierte Herleitung Port-Hamiltonscher Modelle aus Bond-Graphen

Charles Muller

Automatisierte Herleitung Port-Hamiltonscher Modelle aus Bond-Graphen

Tobias Herkner

Mitarbeit an einem Forschungsprojekt

Recent job offers for student assistants can be found here.

Bachelor- and Master Students

	Lena Zellmann Bachelor Thesis Konzeptionierung und Implementierung einer Simulationsumgebung für gekoppelte Energiezellen		Simon Idelhauser Master Thesis Entwurf einer verteilten marktbasierten modellprädiktiven Regelung für gekoppelte Strom- und Wärmenetze
	Yijie Qian Bachelor Thesis Anwendung von schwarmbasierten Ansätzen in der Stromnetzregelung		Lukas Maximilian Rausche Masterarbeit Optimierungsbasierte Regelung gekoppelter dynamischer Systeme
	Lorenz Fehn Bachelor Thesis Verteilte modellprädiktive Regelung eines realen Energienetzes		Mohamed Fares Radouche Bachelor Thesis Modularer Regelungsentwurf mittels Passivitätsindizes
	Nils Horneff Bachelor Thesis Implementierung und Validierung von Port-Hamiltonischen Wärmenetzmodellen		Oliver Ratzel Bachelor Thesis Modellierung des dynamischen Temperaturtransports in Wärmenetzen
	Rishabh Vyas Bachelor Thesis Implementierung und systematischer Vergleich von dynamischen Reglern für Energiezellen		Tianqi Yu Master Thesis Analysis of Game-Theoretic Equilibria in Cellular Energy Networks
	Jochen Illerhaus Bachelor Thesis Entwurf eines modellbasierten prädiktiven Reglers zur optimalen Betriebsführung von Wärmenetzen der 4. Generation		Xueqian Hu Master Thesis Regelung von Kopplungselementen in Sektorübergreifenden Energiesystemen
	Maximilian Nohr Master Thesis Erweiterung von Parameterschätzverfahren im Zeitbereich für Batteriemodelle mittels robuster Filterung und der IV-Methode		Sebastian Eberhard Master Thesis Systematischer Vergleich optimierungsbasierter Verfahren zur Parameteridentifikation
	Silja Hampel Master Thesis Kooperation von Energiezellen hinsichtlich Regionalisierung		Abdulrahman Kassab Master Thesis Sekundäre Regelung von Microgrids mittels Multi-Agent Systemtheorie
	Qi Zhang Master Thesis Verteilte Modellprädiktive Regelung mit Diffussion Strategies

Forschungspraktikum (ETIT-Projekt)
Title	Supervisor
Modellierung, Regelung und Optimierung von Energiesystemen	M. Sc. Albertus Malan M. Sc. Felix Strehle M.Sc. Lukas Kölsch M. Sc. Pol Jané Soneira

Open Theses Alternative Energy Systems
Title	Type	Supervisor
Learning over Networks für Verteilte Modellprädiktive Regelung	Master Thesis	M. Sc. Pol Jané Soneira
Design eines Benchmarksystems für die Regelung von Energienetzen	Bachelor Thesis	M. Sc. Pol Jané Soneira
Modulare Stabilitätsanalyse gekoppelter Systeme mittels Passivitätstheorie	Bachelor/-Master Thesis	M. Sc. Albertus Malan
Modellierung von Kopplungselementen in Sektorübergreifenden Energiesystemen	Bachelor/-Master Thesis	M. Sc. Albertus Malan
Modellierung von Gasnetzen mittels Port-Hamiltonischer Systemtheorie	Master Thesis	M. Sc. Albertus Malan
Modeling of Gas and District Heating Grids for Plug-and-Play Control Design	Master Thesis	M. Sc. Felix Strehle
Modularer Regelungsentwurf und Stabilitätsanalyse für Energiesysteme	Master Thesis	M. Sc. Felix Strehle
Passivitätsbasierte Stabilitätsanalyse und Regelung von Microgrids	Master Thesis	M. Sc. Felix Strehle
Entwurf einer verteilten modellprädiktiven Regelung für multimodale Verteilnetze	Masterarbeit	M. Sc. Jona Maurer
Lyapunov-Stabilität verlustbehafteter Energienetze	Master Thesis	M. Sc. Lukas Kölsch
Kombination des Modulationsfunktionsverfahren mit einem auf Wahrscheinlichkeitsdichten basierenden Identifikationsverfahren	Master Thesis	M. Sc. Oliver Stark
Umsetzung eines iterativen Identifikationsverfahren am IRS-Batteriemessstand	Master Thesis	M. Sc. Oliver Stark

Publications

2020

Explicit port-Hamiltonian formulation of bond graphs with dependent storages.
Pfeifer, M.; Caspart, S.; Muller, C.; Pfeiffer, S.; Krebs, S.; Hohmann, S.
2020. Proceedings of the 21st IFAC World Congress, International Federation of Automatic Control (IFAC)

Explicit port-Hamiltonian formulation of multi-bond graphs for an automated model generation.
Pfeifer, M.; Caspart, S.; Hampel, S.; Muller, C.; Krebs, S.; Hohmann, S.
2020. Automatica, 120, Art. Nr.: 109121. doi:10.1016/j.automatica.2020.109121

A scalable port-hamiltonian approach to plug-and-play voltage stabilization in DC microgrids.
Strehle, F.; Pfeifer, M.; Malan, A. J.; Krebs, S.; Hohmann, S.
2020

A scalable port-hamiltonian approach to plug-and-play voltage stabilization in DC microgrids.
Strehle, F.; Pfeifer, M.; Malan, A. J.; Krebs, S.; Hohmann, S.
2020. 2020 IEEE Conference on Control Technology and Applications (CCTA), 24-26 August 2020, online, 787–794, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CCTA41146.2020.9206323

Bias-free Parameter Identification for Non-Commensurable Fractional Systems.
Stark, O.; Pfeifer, M.; Krebs, S.; Hohmann, S.
2020. 18th European Control Conference, ECC 2020, Saint Petersburg, Russian Federation, 12 - 15 May 2020, 1422–1429, EUCA

Distributed Frequency Regulation for Heterogeneous Microgrids via Steady State Optimal Control.
Kölsch, L.; Dupuis, M.; Bhatt, K.; Krebs, S.; Hohmann, S.
2020. IEEE Green Technologies Conference, GreenTech 2020, 1 - 3 April 2020, Oklahoma City, USA

Dynamic Set-Inversion Procedure to Design Interval-Based State Estimators for Discrete-Time LPV Systems.
Krebs, S.; Meslem, N.; Hohmann, S.
2020. 58th IEEE Conference on Decision and Control (CDC 2019), Nice, F, December 11-13, 2019, 3190–3195, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC40024.2019.9029661

Interval Input-State-Output Estimation for Linear Port-Hamiltonian Systems with Application to Power Distribution Systems.
Pfeifer, M.; Krebs, S.; Hofmann, F.; Kupper, M.; Hohmann, S.
2020. 58th IEEE Conference on Decision and Control (CDC), Nice, F, December 11-13, 2019, 3176–3183, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC40024.2019.9029590

Computation of Orders of a Commensurable Fractional Order Model.
Stark, O.; Kupper, M.; Krebs, S.; Hohmann, S.
2020. 58th IEEE Conference on Decision and Control (CDC), Nice, F, December 11-13, 2019, 784–790, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC40024.2019.9029742

2019

Current and State of Charge Estimation of Lithium-Ion Battery Packs Using Distributed Fractional Extended Kalman Filters.
Kupper, M.; Creutz, A.; Stark, O.; Krebs, S.; Hohmann, S.
2019. IEEE CCTA 2019, 462–469, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CCTA.2019.8920558

Steady-State Optimal Frequency Control for Lossy Power Grids with Distributed Communication.
Kölsch, L.; Bhatt, K.; Krebs, S.; Hohmann, S.
2019. IEEE International Conference on Electrical, Control and Instrumentation Engineering (ICECIE). Proceedings, 1–8, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICECIE47765.2019.8974715

Unknown Input Kalman Filtering for Linear Discrete-Time Fractional Order Systems With Direct Feedthrough [in press].
Kupper, M.; Pfeifer, M.; Krebs, S.; Hohmann, S.
2019. European Control Conference (ECC), Naples, Italy, 25–28 June 2019, Institute of Electrical and Electronics Engineers (IEEE)

Bias-free Parameter Identification of a Fractional Order Model.
Stark, O.; Malan, A. J.; Krebs, S.; Hohmann, S.
2019. doi:10.5445/IR/1000117548

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

Automated Generation of Explicit Port-Hamiltonian Models from Multi-Bond Graphs.
Pfeifer, M.; Caspart, S.; Pfeiffer, S.; Muller, C.; Krebs, S.; Hohmann, S.
2019. doi:10.5445/IR/1000104388

AMOTO: Automatic MOdeling TOol for the Port-Hamiltonian Formulation of Bond Graphs.
Pfeiffer, S.; Muller, C.; Pfeifer, M.; Caspart, S.; Krebs, S.; Hohmann, S.
2019. VDI/VDE GMA-Fachausschuss 1.30 „Modellbildung, Identifikation und Simulation in der Automatisierungstechnik“. Tagung (2019), Anif, Austria, September 25–27, 2019

Explicit Port-Hamiltonian Formulation of Bond Graphs.
Pfeifer, M.; Pfeiffer, S.; Caspart, S.; Muller, C.; Krebs, S.; Hohmann, S.
2019. GMA-Fachausschuss 1.30 „Modellbildung, Identifikation und Simulation in der Automatisierungstechnik“, Anif, A, 25.-27. September 2019, VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik

Unknown input kalman filtering for linear discrete-time fractional order systems with direct feedthrough.
Kupper, M.; Pfeifer, M.; Krebs, S.; Hohmann, S.
2019. 2019 18th European Control Conference (ECC), Napoli, Italy, June 25-28, 2019, 1848–1853, Institute of Electrical and Electronics Engineers (IEEE). doi:10.23919/ECC.2019.8795817

Verteilte Zustandsschätzung fraktionaler Systeme und ihre Anwendung auf Lithium-Ionen-Batteriesysteme. PhD dissertation.
Kupper, M.
2019. KIT Scientific Publishing. doi:1000097127

Modellierung und zentrale prädiktive Regelung von multimodalen Energieverteilnetzen. PhD dissertation.
Sauter, P. S.
2019. KIT Scientific Publishing. doi:10.5445/KSP/1000097501

Verteilte Zustandsschätzung fraktionaler Systeme und ihre Anwendung auf Lithium-Ionen-Batteriesysteme. PhD dissertation.
Kupper, M.
2019. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000097127

Modellierung und zentrale prädiktive Regelung von multimodalen Energieverteilnetzen. PhD dissertation.
Sauter, P. S.
2019. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000096626

An Extension of the Modulating Function Method for Online Parameter Identification of Initialized Fractional Order Models.
Stark, O.; Kupper, M.; Krebs, S.; Hohmann, S.
2019. 2019 International Conference on Fractional Calculus Theory and Applications (ICFCTA 2019), Bourges, F, April 25-26, 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, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC40024.2019.9029272

Automatic Determining of a Modulating Function.
Stark, O.; Eckert, M.; Krebs, S.; Hohmann, S.
2019. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000092062

Interval Set-Membership State Estimator for Discrete-Time LPV Systems.
Krebs, S.; Hohmann, S.
2019. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000091545

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]

Solution of Time-Variant Fractional Differential Equations With a Generalized Peano–Baker Series.
Eckert, M.; Nagatou, K.; Rey, F.; Stark, O.; Hohmann, S.
2019. IEEE Control Systems Letters, 3 (1), 79–84. doi:10.1109/LCSYS.2018.2852600

Controllability and Energy-Optimal Control of Time-Variant Fractional Systems.
Eckert, M.; Nagatou, K.; Rey, F.; Stark, O.; Hohmann, S.
2019. 57th IEEE Conference on Decision and Control (CDC 2018), Miami, FL, December 17-19, 2018, 4607–4612, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC.2018.8619785

Online Parameter Identification of a Fractional Order Model.
Stark, O.; Kupper, M.; Krebs, S.; Hohmann, S.
2019. 57th IEEE Conference on Decision and Control (CDC 2018), Miami, FL, December 17-19, 2018, 2303–2309, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC.2018.8619723

2018

Coupled boundary interval observer for LPV systems subject to uncertainties in input, output and parameters.
Krebs, S.; Bächle, M.; Hohmann, S.
2018. Automatica, 95, 426–432. doi:10.1016/j.automatica.2018.06.012

Cascaded Fractional Kalman Filtering for State and Current Estimation of Large-Scale Lithium-Ion Battery Packs.
Kupper, M.; Brenneisen, J.; Stark, O.; Krebs, S.; Hohmann, S.
2018. 2018 Chinese Control And Decision Conference (CCDC), 5071–5078, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CCDC.2018.8408010

Load Forecasting in Distribution Grids with High Renewable Energy Penetration for Predictive Energy Management Systems.
Sauter, P. S.; Karg, P.; Kluwe, M.; Hohmann, S.
2018. 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2018; Sarajevo; Bosnia and Herzegovina; 21 October 2018 through 25 October 2018, Art. Nr.: 8571524, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ISGTEurope.2018.8571524

Simulation Framework for Multi-Carrier Energy Systems with Power-to-Gas and Combined Heat and Power.
Ruf, J.; Zimmerlin, M.; Sauter, P. S.; Koppel, W.; Suriyah, M. R.; Kluwe, M.; Hohmann, S.; Leibfried, T.; Kolb, T.
2018. 53rd International Universities Power Engineering Conference, UPEC 2018; Glasgow Caledonian University (GCU)Cowcaddens RoadGlasgow; United Kingdom; 4 September 2018 through 7 September 2018, Art. Nr.: 8542066, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/UPEC.2018.8542066

Weighted Least Squares State Estimation for Coupled Power and Gas Distribution Networks.
Pfeifer, M.; Zimmerlin, M.; Schwarzendorfer, M.; Sauter, P.; Krebs, S.; Leibfried, T.; Hohmann, S.
2018. 53rd International Universities Power Engineering Conference, Glasgow, Scotland, 4th-7th September 2018, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/UPEC.2018.8542013

Intervallbeobachter für lineare parametervariante Systeme und deren Anwendung auf die Asynchronmaschine. PhD dissertation.
Krebs, S.
2018. KIT Scientific Publishing. doi:10.5445/KSP/1000086503

Verteilte Zustandsschätzung für fraktionale Systeme am Beispiel von Lithium-Ionen-Batterien.
Kupper, M.; Hohmann, S.
2018. GMA-Fachausschuss 1.40, Systemtheorie und Regelungstechnik, Anif / Salzburg, 17. - 19. September 2018

Combined Optimization of District Heating and Electric Power Networks.
Maurer, J.; Elsner, C.; Krebs, S.; Hohmann, S.
2018. Energy procedia, 149, 509–518. doi:10.1016/j.egypro.2018.08.215

Intervallbeobachter für lineare parametervariante Systeme und deren Anwendung auf die Asynchronmaschine. PhD dissertation.
Krebs, S.
2018. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000085805

Fractional Extended and Unscented Kalman Filtering for State of Charge Estimation of Lithium-Ion Batteries.
Kupper, M.; Funk, C.; Eckert, M.; Hohmann, S.
2018. 2018 Annual American Control Conference (ACC), Milwaukee, WI, USA, 27–29 June 2018, 3855–3862, Institute of Electrical and Electronics Engineers (IEEE). doi:10.23919/ACC.2018.8430859

Full- and Reduced-Order State-Space Modeling of Wind Turbine Systems with Permanent Magnet Synchronous Generator.
Hackl, C.; Jané-Soneira, P.; Pfeifer, M.; Schechner, K.; Hohmann, S.
2018. Energies, 11 (7), 1809. doi:10.3390/en11071809

Interval MRAC with Proven Stability Properties and Application on Induction Motor Control.
Müller, J.; Krebs, S.; Buchholz, M.; Hohmann, S.
2018. The 14th IEEE International Conference on Control and Automation (IEEE ICCA Alaska 2018), Anchorage, AK, June 12-15, 2018, 173–179, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICCA.2018.8444328

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

2017

Graph-theoretic Model for Observability in Multi-carrier Energy Distribution Networks (MEDNs).
Hohmann, S.; Maaß, H.; Mieth, C.; Pfeifer, M.; Wagner, D.; Wegner, F.
2017, September 11. 3rd Scientific Storage and Cross-linked Infrastructures - Meeting (SCI 2017), Karlsruhe, Germany, September 11–12, 2017

Electric Thermal Storage System Impact on Northern Communities’ Microgrids ].
Sauter, P. S.; Solanki, B. V.; Canizares, C. A.; Bhattacharya, K.; Hohmann, S.
2017. IEEE transactions on smart grid, 10 (1), 852–863. doi:10.1109/TSG.2017.2754239

Neural Network-based Load Forecasting in Distribution Grids for Predictive Energy Management Systems.
Sauter, P.; Karg, P.; Pfeifer, M.; Kluwe, M.; Zimmerlin, M.; Leibfried, T.; Hohmann, S.
2017. Die Energiewende : Blueprints for the New Energy Age, Proceedings of the International ETG Congress 2017, World Conference Center, Bonn, 28th - 29th November 2017, 13–18, VDE Verlag

Poster abstract: graph-theoretic model for observability in multi-carrier energy distribution networks.
Hohmann, S.; Maaß, H.; Mieth, C.; Pfeifer, M.; Wagner, D.; Wegner, F.
2017. Computer science - research and development, 33 (1-2), 237–239. doi:10.1007/s00450-017-0366-3

Energy Storage in Microgrids: Compensating for Generation and Demand Fluctuations While Providing Ancillary Services.
Farrokhabadi, M.; Solanki, B. V.; Canizares, C. A.; Bhattacharya, K.; Koenig, S.; Sauter, P. S.; Leibfried, T.; Hohmann, S.
2017. IEEE power & energy magazine, 15 (5), 81–91. doi:10.1109/MPE.2017.2708863

Electric Thermal Storage System Impact on Northern Communities’ Microgrids.
Solanki, B. V.; Sauter, P. S.; Canizares, C. A.; Bhattacharya, K.; Hohmann, S.
2017. 2017 IEEE PES General Meeting- Student Poster Session - Chicago, IL USA, July 16-20 2017

Distributed and Decentralized Kalman Filtering for Cascaded Fractional Order Systems.
Kupper, M.; Gil, I. S.; Hohmann, S.
2017. Proceedings of the 2017 American Control Conference (ACC), Seattle, Washington, USA, 24th - 26th May 2017, 5223–5230, Institute of Electrical and Electronics Engineers (IEEE). doi:10.23919/ACC.2017.7963766

Modellbasierte Identifikation fraktionaler Systeme und ihre Anwendung auf die Lithium-Ionen-Zelle. PhD dissertation.
Eckert, M.
2017. KIT Scientific Publishing. doi:10.5445/KSP/1000071542

Comparison of the Holomorphic Embedding Load Flow Method with Established Power Flow Algorithms and a New Hybrid Approach.
Sauter, P. S.; Braun, C. A.; Kluwe, M.; Hohmann, S.
2017. 2017 Ninth Annual IEEE Green Technologies Conference (GreenTech), Denver, CO, USA, 29-31 March 2017, 203–210, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/GreenTech.2017.36

2016

Fractional algebraic identification of the distribution of relaxation times of battery cells.
Eckert, M.; Kölsch, L.; Hohmann, S.
2016. 54th IEEE Conference on Decision and Control, CDC 2015; Osaka International Convention Center (Grand Cube)5-3-51 Nakanoshima, Kita-KuOsaka; Japan; 15 December 2015 through 18 December 2015, 2101–2108, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CDC.2015.7402517

Distributed State Estimation of Large-Scale Fractional Order Systems.
Kupper, M.; Hohmann, S.
2016. SINO-EU Doctoral School for Sustainability Engineering, Harbin, 29.08.2016 - 02.09.2016

Optimal energy management of low level multi-carrier distribution grids.
Maurer, J.; Sauter, P. S.; Kluwe, M.; Hohmann, S.
2016. 2016 IEEE International Conference on Power System Technology (POWERCON), Wollongong, Australia, 28 September–1 October 2016, 1–6, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/POWERCON.2016.7754071

Distributed and Decentralized State Estimation of Fractional Order Systems.
Kupper, M.; Gil, I. S.; Hohmann, S.
2016. Proceedings of the 2016 American Control Conference (ACC), Boston, Massachusetts, USA, 6th - 8th July 2016, 2765–2771, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ACC.2016.7525337

2015

Possible New Concepts for Robust Battery Management Systems.
Kupper, M.; Schuff, T.; Hohmann, S.
2015. 24. Aachener Kolloquium Fahrzeug- und Motorentechnik, Aachen, 5.-7.10.2015, ika

Rule-based PI controller autotuning for drive systems.
Pfeifer, M.; Weickert, T.; Klose, S.
2015. 2015 European Control Conference (ECC 2015) : Linz, Austria, 15 - 17 July 2015, 672–677, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ECC.2015.7330619

Modellbasierte Identifikation fraktionaler Batterieparameter.
Eckert, M.
2015. Elektrotechnisches Kolloquium, Universität Erlangen-Nürnberg - Lehrstuhl für Regelungstechnik, 26.01.2015

2014

Fraktionale Systemidentifikation von Batteriezellen mithilfe von Modulationsfunktionen.
Eckert, M.; Kupper, M.; Hohmann, S.
2014. GMA-Fachausschuss 1.30, Workshop "Modellbildung, Identifikation und Simulation in der Automatisierungstechnik", Anif/Salzburg, 24. - 26.09.2014

Modeling and Optimal Control of Energy Distribution Grids.
Sauter, P.
2014. SINO-EU Doctoral School for Sustainability Engineering, Tongji University Shanghai, 14.-16. September

Functional Fractional Calculus for System Identification of Battery Cells.
Eckert, M.; Kupper, M.; Hohmann, S.
2014. at-Automatisierungstechnik, 62 (4), 272–281. doi:10.1515/auto-2014-1083

Functional Fractional Calculus for Identification of Time Variant Systems.
Eckert, M.; Kupper, M.; Hohmann, S.
2014. 7th International Workshop on Impedance Spectroscopy (IWIS), Chemnitz University of Technology, Germany, September 25-27, 2014

Subliminal optimal longitudinal vehicle control for energy efficient driving.
Sauter, P.; Flad, M.; Hohmann, S.
2014. Proceedings - 2014 IEEE International Conference on Systems, Man, and Cybernetics (SMC), San Diego, CA, USA, October 5-8, 2014, 3001–3007, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/SMC.2014.6974387

Fractional Identification of the State of Charge of a Li-Ion Battery Cell.
Eckert, M.
2014. Batterietagung, 24. - 26. März 2014 in Münster [6. internationalen Fachtagung "Kraftwerk Batterie - Lösungen für Automobil und Energieversorgung]

2013

Fractional Identification of the State of Charge of a Li-Ion Battery Cell.
Eckert, M.; Hohmann, S.
2013. 5. Internationales Symposium "Kraftwerk Batterie - Advanced Battery Power for Automotive and Utility Applications and their Electric Power Grid Integration", Aachen, 25. bis 27. Februar 2013

Cooperation-focused education in mechatronic engineering design projects.
Schmidt, S.; Lohmeyer, Q.; Krebs, S.; Hohmann, S.; Matthiesen, S.
2013. 15th International Conference on Engineering and Product Design Education: Design Education - Growing Our Future, EPDE 2013; Dublin; Ireland; 5 - 6 September 2013: Proceedings. Ed.: E. Bohemia, 296–301, The Design Society

Erschließung mechatronischer Synergiepotentiale durch kooperationsorientierte Lehre (koop-L).
Matthiesen, S.; Hohmann, S.; Schmidt, S.; Breitschuh, J.; Lohmeyer, Q.; Krebs, S.
2013. Standortvorteil Methodik : 11. Gemeinsames Kolloquium Konstruktionstechnik (KT 2013), 12. - 13. September 2013 in Aachen. Hrsg.: K. Brökel, Shaker Verlag

2012

Fractional Identification of the State of Charge of a Li-Ion Battery Cell.
Eckert, M. S.; Xiao, C.-N.; Hohmann, S.
2012. Abstract book / 5th International Workshop on Impedance Spectroscopy (IWIS 2012), Chemnitz, September 26-28, 2012, Technische Universität Chemnitz