Smart Grid

Networked, intelligent operation of all components in the power grid of tomorrow for the efficient integration of decentralized, renewable energy.

Electromobility in Private Life

We are investigating how electromobility can be integrated into daily private life. Energy management systems are designed and intelligent charging systems installed in a group of seven energy-efficient ZeroPlus houses with photovoltaic systems.

Smart Grids

Our Fields of Work comprise:

Embedded Systems and System Control

Communication technology for virtual power plants

Grid-integration of Electric Vehicles

Power Distribution Grids and Operating Equipment

Operation Management and Optimization of Energy Supply Systems

Energy Agents and District Management

For a sustainable, efficient and secure energy supply, we develop new system concepts and investigate system solutions in laboratory and field experiments. One focus of our work is the analysis and evaluation of the operation of distribution networks and applications for smart grids. We develop higher-level control systems for voltage management in distribution grids and optimized energy management systems for grid integration. Renewable energies, electro mobility and cross-sector components are optimized by predicted control concepts using probabilistic weather forecasting. System dynamics of actuators such as controllable transformers (OTC), reactive power regulators or storage systems are considered and optimized. We develop graphical user interfaces for grid operators which visualize power flow and power quality conditions of the grid using state estimating technology.

We use model based design methods to optimize the operation management with individual actuators and load management. Using specific developed tools, individual components and energy supply systems can be monitored in detail. With modern information and communication technology (ICT) and artificial intelligence, we aim to enable the secure and efficient integration of decentralized, renewable energy to the electrical grid and additionally into the communication network. Our expertise in ICT ranges from measurement and condition monitoring of generation and loads, energy flow optimization, communication protocols, plant control, market integration, billing and user feedback.

 

 

In addition to our research and development on Smart Grids, we offer our customers services in our laboratory center:

Selected Research Projects

 

WPsmart im Bestand

Heat Pump Field Trial – Focus Existing Buildings and Smart Control

 

Fellbach ZEROplus

Intelligent Usage of Electric Vehicles in the Overall Energy Concept of an Energy Plus House Group in Fellbach

 

DiGO

Distribution Grid Optimization

 

C/sells

Large-Scale Showcase in the 'Solar Arch' in Southern Germany

Christof Wittwer

Contact Press / Media

Prof. Dr. Christof Wittwer

Smart Grids

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5115

Robert Kohrs

Contact Press / Media

Dr. Robert Kohrs

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5708

Publications

 

YearTitle/AuthorDocument Type
2019An analytical approach for estimating the global horizontal from the global tilted irradiance
Halilovic, S.; Bright, J.M.; Herzberg, W.; Killinger, S.
Journal Article
2019Battery storage - One of the Key Enablers Towards 100% Renewables: Presentation held at 100% Renewables Workshop 2019, Canberra, Australia, February 13-15, 2019
Vetter, M.
Presentation
2019Bayesian parameterisation of a regional photovoltaic model - Application to forecasting
Saint-Drenan, Y.-M.; Vogt, S.; Killinger, S.; Bright, J.M.; Fritz, R.; Potthast, R.
Journal Article
2019A Comparison of Two Models for the Separation of Direct and Diffuse Irradiance in Plane of Array
Guzman Razo, D.; Killinger, S.; Müller, B.; Wittwer, C.
Conference Paper
2019Data Article: Distributed PV Power Data for Three Cities in Australia
Bright, J.; Killinger, S.; Engerer, N.
Journal Article
2019Electric Vehicles' Impacts on Residential Electric Local Profiles - A Stochastic Modelling Approach Considering Socio-Economic, Behavioural and Spatial Factors
Fischer, D.; Harbrecht, A.; Surmann, A.; McKenna, R.
Journal Article
2019Ist die Energiewende noch zu retten?
Henning, H.-M.; Umbach, E.
Journal Article
2019Stochastic Bottom-up Framework for Load and Flexibility for Agent Based Controls of Energy Communities
Surmann, A.; Chantrel, S.; Fischer, D.; Kohrs, R.; Wittwer, C.
Conference Paper
2019Systemintegration umfassend: Technisch, ökonomisch, gesellschaftlich. Das Kopernikus-Projekt ENAVI: Vortrag gehalten auf dem Forum Integrated Energy, Hannover, Germany, 01.04.2019-05.04.2019
Henning, H.-M.
Presentation
2018Die Chancen der Energiewende nutzen. Editorial
Henning, H.M.
Journal Article
2018Digitalisierung und Energiesystemtransformation - Chancen und Herausforderungen: Vortrag gehalten auf der Jahrestagung 2018 des Forschungsverbundes Erneuerbare Energien FVEE, Berlin, Germany, 17. und 18. Oktober 2018
Henning, H.-M.; Agert, C.; Rohrig, K.; Niepelt, R.; Fichtner, W.; Sauer, D.-U.; Gawel, E.; Fischedick, M.
Presentation
2018Digitalisierung und Energiewende - Modethema oder Megatrend?: Vortrag gehalten auf der Eröffnungsfeier der Mondas GmbH, Freiburg, Germany, 09.11.2018
Henning, H.
Presentation
2018Enhancing operation of decentralized energy systems by a regional economic optimization Model DISTRICT
Thomsen, J.
Journal Article
2018Future energy systems with high renewable energy shares: Presentation held at Grid Modernization in MA: International Insights to Meet 2050 Carbon Goals, Boston, MA, USA, April 25, 2018
Henning, H.-M.
Presentation
2018Gepoolte PV-Heimspeicher zur Bereitstellung von Primärregelleistung
Hollinger, Raphael; Engel, Bernd (Referent); Wittwer, Christof (Referent)
Dissertation
2018Implementation of Envelopes as a Regulatory Degree of Freedom for Batteries Participating in Fast Frequency Response
Hollinger, Raphael; Motte Cortés, Augustín; Wittwer, Christof; Engel, Bernd
Journal Article
2018On the search for representative characteristics of PV systems: Data collection and analyses of PV system azimuth, tilt, capacity, yield, and shading
Killinger, S.; Lingfors, D.; Saint-Drenan, Y.-M.; Moraitis, P.; Sark, W. van; Taylor, J.; Engerer, N.A.; Bright, J.M.
Journal Article
2018Power-to-gas in a smart city context - influence of network restrictions and possible solutions using on-site storage and model predictive controls
Fischer, D.; Kaufmann, F.; Selinger-Lutz, O.; Voglstätter, C.
Journal Article
2018Real live demonstration of MPC for a power-to-gas plant
Fischer, D.; Kaufmann, F.; Hollinger, R.; Voglstätter, C.
Journal Article
2018Sektorkopplung und Systemintegration - Schlüsselelemente der nächsten Phase der Energiewende: Vortrag gehalten auf dem 7. Kongress Energieautonome Kommunen, Freiburg, Germany, 01.02.2018-02.02.2018
Henning, H.M.
Presentation
2017Analysis and evaluation of the IEC 61850 communication standard for monitoring and control of distributed energy resources
Feuerhahn, Stefan; Wietfeld, Christian (Referent); Lehnhoff, Sebastian (Referent); Wittwer, Christof (Betreuer)
Dissertation
2017Integrating heat pumps into smart grids: A study on system design, controls and operation
Fischer, David; Palm, Björn (Referent); Madani, Hatef (Supervisor); Wittwer, Christof (Referent)
Dissertation
2017Model-based flexibility assessment of a residential heat pump pool
Fischer, D.; Wolf, T.; Wapler, J.; Hollinger, R.; Madani, H.
Journal Article
2017On heat pumps in smart grids: A review
Fischer, D.; Madani, H.
Journal Article
2016Digitization of the Energy System: Presentation held at Fachmesse Intersolar Europe 2016, München, Germany, 22.06.2016
Kohrs, R.
Presentation
2016Impact of PV and variable prices on optimal system sizing for heat pumps and thermal storage
Fischer, D.; Lindberg, K.B.; Madani, H.; Wittwer, C.
Journal Article
2016Methodology for optimal energy system design of zero energy buildings using mixed-integer linear programming
Byskov Lindberg, K.; Doorman, G.; Fischer, D.; Korpas, M.; Ånestad, A.; Sartori, I.
Journal Article
2016Optimal provision of primary frequency control with battery systems by exploiting all degrees of freedom within regulation
Hollinger, Raphael; Diazgranados, Luis M.; Wittwer, Christof; Engel, Bernd
Journal Article
2016A stochastic bottom-up model for space heating and domestic hot water load profiles for German households
Fischer, D.; Wolf, T.; Scherer, J.; Wille-Haussmann, B.
Journal Article
2015Characterization of a fuel cell stack for use in material handling applications
Keller, S.; Cremers, C.; Niedergesäß, A.; Özel, T.
Conference Paper
2014Autonomous reactive power control of electric vehicles
Kohrs, R.; Dallmer-Zerbe, K.; Mierau, M.; Wittwer, C.
Conference Paper
2014Design of a multiagent-based voltage control system in peer-to-peer networks for smart grids
Rohbogner, G.; Fey, S.; Benoit, P.; Wittwer, C.; Christ, A.
Journal Article
2014Neue Reglerstruktur für Netz- und Inselwechselrichter
Abbassi, N.; Reichert, S.
Conference Paper
2014Peak shaving with photovoltaic-battery systems
Braam, F.; Hollinger, R.; Llerena Engesser, M.; Müller, S.; Kohrs, R.; Wittwer, C.
Conference Paper
2014Potential der Ladung von Elektrofahrzeugen durch Photovoltaikenergie im Privathaushalt
Mierau, M.; Noeren, D.; Becker, F.
Study
2014Remote control of distributed energy resources using IEC 61850 as application-layer protocol standard
Feuerhahn, S.; Kohrs, R.; Wittwer, C.
Journal Article
2013Design criteria for robust and secure next generation CPV control systems
Benoit, P.; Fey, S.; Rohbogner, G.; Kohrs, R.; Wittwer, C.; Georg, D.; Wüllner, J.; Gombert, A.
Conference Paper
2013Energiemanagement im Gebäude
Kohrs, R.
Conference Paper
2013How accurate are drivers' predictions of their own mobility?: Accounting for psychological factors in the development of intelligent charging technology for electric vehicles
Hahnel, U.J.J.; Gölz, S.; Spada, H.
Journal Article
2013Security architecture of the OGEMA 2.0 home energy management system
Zillgith, M.; Nestle, D.; Wagner, M.
Conference Paper
This publication list has been generated from the publication database Fraunhofer-Publica.