Converter-Based Power Grids and System Stability

In the topic "Converter-Based Power Grids and System Stability" we research, develop and test the secure operation of our future power grids based on 100% renewable energy.

Power grids are currently changing fundamentally from an electromechanical to a converter-based system. In this context, we are developing methods for the control and stability analysis of decentralized converter-based grids. We are investigating interactions between different power converters, but also between power converters and other grid components. With our concepts for Grid-forming Inverters, we offer solutions that form an important support for the power grid every millisecond.

The verification of these new system services and behaviors is central to reliable grid operation. To this end, we are developing methods, for example to prove the grid-forming behavior of power converters or new grid control methods, which we test with our extensive and high-tech laboratory infrastructure in our Multi-Megawatt Lab.

A key instrument for the transformation of the power grid during the transition phase is the development of grid connection guidelines that define the characteristics of all generators connected to the grid. In order to use the findings in practice, we are actively involved in committees in which grid connection and testing guidelines are developed. We support our partners in implementing the continuously evolving requirements in accordance with the guidelines.

Fields of Work

In the research topic "Converter-Based Power Grids and System Stability" we focus on the following fields of work:

Dynamic Modeling of Converters, Systems and Grid Segments

Grid Stability Services Provided by Power Converters

Development and Evaluation of Control Methods for Stable Power Grids

Development and Support of Grid Connection Regulations and Testing Guidelines

Trouble Shooting in PV Power Plants

Characterization of Low and Medium Voltage Converters

R&D Services

We develop new methods for the control of decentralized converter-based grids and for the stability analysis of these grids. We analyze the interactions between inverters or between inverters and other grid components. Evaluating the conformity of inverters with new system services is crucial for reliable grid control. We develop new test methods for grid-forming inverters as well as new grid control methods and test them with our high-tech laboratory infrastructure in our Multi-Megawatt Lab.
Our broad range of services includes:

  • Dynamic grid simulation and system modeling in accordance with grid connection guidelines
  • Development of methods for dynamic grid stability analysis in converter-based grids
  • Development of grid-forming control algorithms for stable power grids
  • Analysis and optimization of protection systems for converter-based grids
  • Testing of grid control strategies and grid-forming inverters in our Multi-Megawatt laboratory
  • Accredited measurement and characterization of power electronic devices
  • Fault analyses, troubleshooting and tests in the laboratory and in the field
  • Advice and expert reports on power electronics issues

Against the background of the shutdown of conventional power plants, our focus is on the question of how reliable voltage and frequency regulation can be guaranteed in future converter-based grids. With our concepts, we offer simulated and tested solutions for the secure operation of future power grids based on 100% renewable energies and are constantly developing our approaches and methods further.

R&D Infrastructure

At Fraunhofer ISE, we benefit from this infrastructure for our research and development activities:

Center for Power Electronics and Sustainable Grids

The Power Converters Lab, Digital Grid Lab, Multi-Megawatt Lab and Medium Voltage Lab provide unique opportunities for research and development in the field of power electronics and dynamic grid control.

 
 

Accredited Lab

TestLab Power Electronics

Testing and characterization of power converters up to the multi-megawatt range for photovoltaic and battery applications, combined heat and power plants and DC fast-charging stations for electromobility.

Typical measurement campaigns relate to grid connection guidelines, efficiency levels, temperature-dependent derating and customer-specific tests and benchmarks.

Selected Research Projects

 

GFM-Benchmark

Cross Vendor Measurements of Grid Forming Converters to Analyze the State of the Art

 

VerbundnetzStabil

Stable Power System Behavior with Converter-based Generation

 

Q-REAL

Reactive Power Management in Real Application

 

ImaStabil

Impedance Analysis of PV Power Plants to Ensure Stable and Reliable Operation on the Grid

Contact

Roland Singer

Contact Press / Media

Roland Singer

Converter-Based Power Grids and System Stability

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5948

Robin Grab

Contact Press / Media

Robin Grab

Grid Performance of Decentral Generators

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-2084

Steffen Eyhorn

Contact Press / Media

Steffen Eyhorn

Testlab Power Electronics

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5957

Current Publications on the Topic "Converter-Based Power Grids and System Stability"

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2024 Impedanzbasiertes Verfahren zur prädikativen Stabilitätsbewertung - Ein Review
Schräder, Johannes; Kaiser, Sebastian; Jordan, Michael; Schulz, Detlef
Konferenzbeitrag
Conference Paper
2023 Field Data Based Analysis of Microclimates and Humidity in PV Inverters
Kulenkampff, Felix; Franz, Sebastian; Hercegfi, Patrick; Menold, Lukas
Konferenzbeitrag
Conference Paper
2023 Mittelspannungs-Stringwechselrichter und angepasste Kraftwerkskonzepte für zukünftige PV-Großkraftwerke
Geiss, Michael; Hensel, Andreas; Derix, David; Thoma, Jürgen; Kranzer, Dirk
Konferenzbeitrag
Conference Paper
2023 Feldtest von netzbildenden Umrichtern am Fraunhofer ISE
Ernst, Philipp; Singer, Roland; Greulich, Andreas; Oberascher, Heiko
Konferenzbeitrag
Conference Paper
2023 Temporary overvoltages and their impact on grid security - final results from the joint research project OVRTuere
Kaiser, Sebastian; Eichner, Stefan; Wirtz, Christoph; Murglat, Max; Brenner, Marina; Lilje, Peter; Garcia, Cesar; Döll, Johannes; Ayadi, Yacine; Bosch, Erich
Konferenzbeitrag
Conference Paper
2023 Dynamic Grid Study of Onshore Wind Plants Depending on Validated Technical Guideline TG4 Models
Salman, Ammar; Hans, Franziska Alina; Eichner, Stefan
Vortrag
Presentation
2023 Halbleiter als Schlüsselkomponente für zuverlässige PV-Wechselrichter - Felddatenanalyse zu Ausfällen und Stressoren
Kulenkampff, Felix; Franz, Sebastian; Hercegfi, Patrick; Menold, Lukas
Vortrag
Presentation
2023 Development of a pricing model for the reactive power supply via STATCOM capability of a real PV power plant
Eichner, Stefan; Schuster, Merten; Köppe, Hartmudt; Sass, Florian; Grab, Robin
Konferenzbeitrag
Conference Paper
2023 Design of a Fast Switching 200 kVA SiC Drive Inverter for Aviation Application
Vollmar, Nicolas; Wöhrle, Dennis; Armbruster, Cornelius; Schöner, Christian
Konferenzbeitrag
Conference Paper
2023 Frequency-Dependent Grid Impedance Measurement on Low-, Medium- and High-Voltage Level
Kaiser, Sebastian; Gilsdorf, Johannes; Eyhorn, Steffen; Heupel, Florian; Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2023 Energiesicherheit und klimaneutrale Energiesysteme
Henning, Hans-Martin
Vortrag
Presentation
2023 Grid Control with Converters - Stability aspects in power grids, grid forming converters, microgrids and interconnected systems with high share of converter-based resources
Rogalla, Sönke
Vortrag
Presentation
2023 Medium Voltage String Inverter for Future Utility-Scale PV Power Plants
Geiss, Michael; Derix, David; Hensel, Andreas; Thoma, Jürgen; Kranzer, Dirk
Konferenzbeitrag
Conference Paper
2023 Kurz-Studie "Photovoltaikindustrie in BW entlang der Wertschöpfungskette"
Rogalla, Sönke; Heimsath, Anna; Subasi, Dilara Maria; Kaiser, Sebastian; Nold, Sebastian; Philipps, Simon
Vortrag
Presentation
2023 Konzept "virtueller" BIPV-Einheiten mit integrierter Systemtechnik zur Anbindung von gebäudeintegrierter PV ans Hausstromnetz
Schöner, Christian; Eggers, Jan-Bleicke; Mondot, Julien; Armbruster, Cornelius
Vortrag
Presentation
2023 Battery Inverter System for Stationary, 1500 V Hybrid Battery Storage Applications
Kragl, Robert; Armbruster, Cornelius; Reichert, Stefan; Liese, Stephan; Mahajan, Akshay
Konferenzbeitrag
Conference Paper
2023 Ultrafast GaAs MOVPE growth for power electronics
Lackner, David; Urban, Theresa; Lang, Robin; Pellegrino, Carmine; Ohlmann, Jens; Dudek, Volker
Zeitschriftenaufsatz
Journal Article
2023 Grundlagen des Impedanz-basierten Stabilitätskriteriums und Erfahrungen mit der messtechnischen Bewertung von Wechselrichtern
Rogalla, Sönke
Vortrag
Presentation
2023 Germany's plans to decarbonize the energy system by 2045 seen in a global context
Rogalla, Sönke
Vortrag
Presentation
2023 Power Module Design for GaN Transistors Enabling High Switching Speed in Multi-Kilowatt Applications
Wöhrle, Dennis; Burger, Bruno; Ambacher, Oliver
Zeitschriftenaufsatz
Journal Article
2023 A Classification of Grid-Forming Converter Control and its Application to Improve Power System Stability and Resilience
Denninger, Rebekka; Rogalla, Sönke; Ernst, Philipp; Burger, Bruno
Vortrag
Presentation
2022 Smart mobile vaccination pickup for sustainable improvement of medical care and smart pandemic control in Southern Africa
Stortz, Felix; Went, Joachim; Koschikowski, Joachim; Maruf, Md Nasimul Islam; Schäfer, Lothar; Neumann, Frank; Lotz, Bryan; Beckett, Marc; Hamann, Maike
Konferenzbeitrag
Conference Paper
2022 New Power Semiconductors: SiC and GaN Power Transistors and Diodes, Gate Drivers, Applications and Challenges of the New Technologies
Hensel, Andreas
Vortrag
Presentation
2022 Vergleich von Wechselrichtern mit Multi-MPPT und Single-MPPT für verschiedene Solaranlagenkonfigurationen und Standorte
Hensel, Andreas; Probst, Leonhard; Burger, Bruno
Vortrag
Presentation
2022 Fire Safety in PV and Battery Systems
Kulenkampff, Felix; Schmidt, Heribert
Vortrag
Presentation
2022 Ultrafast GaAs MOVPE Growth for Power Electronics
Lackner, David; Urban, Tobias; Lang, Robin; Pellegrino, Carmine; Dudek, Volker
Vortrag
Presentation
2022 EMT Modelling of Inverter-Based Resources for Grid Stability Analysis Using Vendor-Independent Interfaces
Mahajan, Akshay; Stickan, Benjamin; Salman, Ammar; Gasser, Corentin; Kulenkampff, Felix; Singer, Roland; Rogalla, Sönke; Schaupp, Thomas; Schoell, Christian; Lindner, Marco; Rollkowski, Timm
Konferenzbeitrag
Conference Paper
2022 Visualisierung des Potentials netzbildender Wechselrichter zur Bereitstellung von Reserveleistung
Denninger, Rebekka; Probst, Leonhard; Burger, Bruno; Schultz, Alexander; Dressler, Yann
Konferenzbeitrag
Conference Paper
2022 Central Inverters and PV Power Plant Concepts
Kulenkampff, Felix; Rogalla, Sönke
Vortrag
Presentation
2022 Investigation of additively manufactured structurally integrated heat pipes for CubeSats
Kappe, Konstantin; Bihler, Michael; Morawietz, Katharina; Pfaff, Aron; Bierdel, Marius; Huber, Jakob; Paul, Theresa; Hoschke, Klaus
Konferenzbeitrag
Conference Paper
2022 Reliability of Inverters in Photovoltaic Power Systems - A Detailed Field Data Analysis
Kulenkampff, Felix; Franz, Sebastian; Kiefer, Klaus; Sans, Lennart
Konferenzbeitrag
Conference Paper
2022 Non-parasitic induced transient overvoltage in ANPC topology due to critical switching sequences
Geiss, Michael; Kragl, Robert; Thoma, Jürgen; Volzer, Benjamin
Konferenzbeitrag
Conference Paper
2022 Modellierung von Wechselrichterverlusten bei Blindleistungseinspeisung
Grab, Robin; Hans, Franziska Alina; Schmidt, Heribert; Rogalla, Sönke; Engel, Bernd
Vortrag
Presentation
2022 Datenblatt-Wirkungsgrad kein Entscheidungskriterium
Hensel, Andreas; Hans, Franziska Alina; Eyhorn, Steffen
Zeitschriftenaufsatz
Journal Article
2022 Stabilitätsbetrachtung von Wind- und Photovoltaikparks bei Blindleistungseinspeisung
Grab, Robin
Konferenzbeitrag
Conference Paper
2022 Einfluss verschiedener FRT-Konzepte auf das Verhalten von Energieerzeugungsanlagen bei Netzfehlern
Kaiser, Sebastian; Eichner, Stefan
Konferenzbeitrag
Conference Paper
2022 Systematic study of GHz-burst femtosecond laser ablation of 4H-SiC wafers
Mir, Hanan; Meyer, Fabian; Dulitz, Katrin; Brand, Andreas; Nekarda, Jan
Vortrag
Presentation
2022 Field-Data Based Failure Analysis and Application-Specific Testing (Wind Power and PV)
Fischer, Katharina; Kulenkampff, Felix
Vortrag
Presentation
2022 Modeling of Photovoltaic Inverter Losses for Reactive Power Provision
Grab, Robin; Hans, Franziska Alina; Rojas Flores, Mariano Ivan; Schmidt, Heribert; Rogalla, Sönke; Engel, Bernd
Zeitschriftenaufsatz
Journal Article
2022 A nonlinear Real-Time Pulse-Pattern MPC Scheme for Power-Electronics Circuits Operating in the Microseconds Range
Stickan, Benjamin; Frison, Gianluca; Burger, Bruno; Diehl, Moritz
Konferenzbeitrag
Conference Paper
2022 Modellierung einer FRT-Prüfeinrichtung und simulative Betrachtung der Netzrückwirkungen - Vergleich mit Labormessdaten
Kaiser, Sebastian; Eichner, Stefan; Adel Sufian, A.E.
Konferenzbeitrag
Conference Paper
2022 OffsH2ore Island Grid for Hydrogen Production - Electrical Simulation on How to Reach Grid Stability
Eichner, Stefan; Kulenkampff, Felix; Salman, Ammar
Konferenzbeitrag
Conference Paper
2022 Netzbildende Wechselrichter in Verbundnetzen - Abschließende Ergebnisse aus dem Forschungsprojekt VerbundnetzStabil
Rogalla, Sönke; Denninger, Rebekka; Ernst, Philipp; Greulich, A.; Lens, H.; Salman, Ammar; Schaupp, T.; Singer, Roland; Ungerland, Jacob
Konferenzbeitrag
Conference Paper
2021 Frequenzstabilität bei Netzauftrennungen im Verbundnetz - Einfluss netzbildender Umrichter auf die Frequenzstabilität
Denninger, Rebekka; Nuschke, M.
Vortrag
Presentation
2021 DyConPV - Hochdynamische Regelung von PV-Wechselrichtern. Schlussbericht
Stickan, Benjamin
Bericht
Report
2021 5-kW-DC/DC-Wandler mit hohem Teillastwirkungsgrad für 48-V-Heimspeicher
Hercegfi, Patrick
Konferenzbeitrag
Conference Paper
2021 Vergleich verschiedener OVRT-Prüfstände im Zusammenhang mit realistischen Überspannungsereignissen
Eyhorn, Steffen; Kaiser, Sebastian; Rogalla, Sönke; Kaiser, Sebastian
Konferenzbeitrag
Conference Paper
2021 Reactive Power Availability of a 20 kW Three Phase Three Level PFC
Mahajan, Akshay; Siedle, Christoph
Konferenzbeitrag
Conference Paper
2021 Ein Testverfahren für netzbildende Wechselrichter - Der nächste notwendige Schritt für den stabilen Betrieb stromrichterdominierter Netze
Rogalla, Sönke; Denninger, Rebekka; Ernst, Philipp; Singer, Roland; Greulich, A.; Kersic, M.; Müller, T.
Konferenzbeitrag
Conference Paper
2021 Impact of Changed Reactive Power Flows on Protection Relays in the Future Distribution Grid
Eichner, Stefan; Arshad, Muhammad Arslan; Grab, Robin; Jahr, A.
Konferenzbeitrag
Conference Paper
2021 Q-Dynamik: Blindleistungsstellgeschwindigkeiten im Verteilnetz
Grab, Robin; Rauch, J.; Götz, R.; Brückl, O.; Eichner, Stefan; Engel, Bernd
Konferenzbeitrag
Conference Paper
2021 Grid Forming Converters in Interconnected Systems - Final Results from the Joint Research Project VerbundnetzStabil
Rogalla, Sönke; Greulich, A.; Lehner, J.; Lens, H.; Ernst, Philipp; Schaupp, T.; Singer, Roland; Ungerland, Jacob; Schöll, C.; Denninger, Rebekka; Salman, Ammar
Vortrag
Presentation
2021 Untersuchung verschattungsoptimierter Halbzellenmodule mit einlaminierter Leistungselektronik für das MPP-Tracking auf Substring-Ebene
Armbruster, Cornelius; Kutter, Christoph; Schmid, A.; Tummalieh, Ammar; Rouffaud, Gilles; Basler, Felix; Wille-Haußmann, Bernhard; Famulla, J.; Schüler, Marc Andre; Oyebanji, U.O.
Konferenzbeitrag
Conference Paper
2021 Series-Resonant-Converter with Galvanic Isolation and >99% Efficiency
Bornwasser, Jörg
Konferenzbeitrag
Conference Paper
2021 Universelle Umrichterregelung für ein- und dreiphasige Systeme im Netzparallel- und Inselnetz-Betrieb
Siedle, Christoph
Konferenzbeitrag
Conference Paper
2021 Expert Input Paper - Eco-Design & Energy Labelling for Photovoltaic Modules, Inverters and Systems in the EU
Wade, Andreas; Neuhaus, Holger; Sauer, Thomas; Probst, Leonhard; Moser, David; Rohr, Carsten; Rossi, Raffaele
Bericht
Report
2021 Compact GaN Charger with Wide Output Voltage Range for the Universal Usage in Electrical Vehicles with Battery Voltages from 200 to 1000 V
Armbruster, Cornelius
Konferenzbeitrag
Conference Paper
2021 Universelle Umrichterregelung für ein- und dreiphasige Systeme im Netzparallel- und Inselnetz-Betrieb
Siedle, Christoph; Reichert, Stefan; Stickan, Benjamin; Rauscher, M.
Konferenzbeitrag
Conference Paper
2021 Highly Compact 250 kVA Inverter Stack with 3.3 kV SiC MOSFETs
Thoma, Jürgen; Volzer, Benjamin; Kranzer, Dirk; Derix, David; Geiss, Michael; Hensel, Andreas
Konferenzbeitrag
Conference Paper
2020 Wirkungsgrad von Wechselrichtern bei Blindleistungseinspeisung
Grab, Robin
Konferenzbeitrag
Conference Paper
2020 Ökobilanz eines Solarwechselrichters
Probst, Leonhard; Liardet, L.; Rouffaud, Gilles
Konferenzbeitrag
Conference Paper
2020 Comparison of Different OVRT Test Benches in the Context of Realistic Over-voltage Events
Eyhorn, Steffen; Kaiser, Sebastian; Rogalla, Sönke; Klosse, R.
Konferenzbeitrag
Conference Paper
2020 6-W Optical Power Link with Integrated Optical Data Transmission
Helmers, Henning; Armbruster, Cornelius; Ravenstein, Moritz von; Derix, David; Schöner, Christian
Zeitschriftenaufsatz
Journal Article
2020 Improving, Modelling and Simulation of Droop Controller for Grid-forming Inverters in DIgSILENT PowerFactory
Pham, P.N.; Salman, Ammar; Singer, Roland
Konferenzbeitrag
Conference Paper
2020 Analysis of the Overvoltage Behavior in Interconnected Operation and Determination of Costs for an Extended Overvoltage Capability of Generation Units
Eichner, Stefan; Salman, Ammar; Chen, Y.; Shahid, Salman
Konferenzbeitrag
Conference Paper
2020 Measured Impedance Characteristics of Solar Inverters up to 1 MW
Rogalla, Sönke; Kaiser, Sebastian; Burger, Bruno; Engel, Bernd
Konferenzbeitrag
Conference Paper
2020 Investigation of Network Protection Coordination with Changed Reactive Power Flows in the Future Grid
Eichner, Stefan; Arshad, Muhammad Arslan; Grab, Robin
Konferenzbeitrag
Conference Paper
2020 Dynamic Capabilities of Distributed Reactive Power Sources
Grab, Robin; Köppe, H.; Nielsen, L.; Eichner, Stefan; Rogalla, Sönke; Engel, Bernd
Konferenzbeitrag
Conference Paper
2020 Determination of the Frequency Dependent Thévenin Equivalent of Inverters using Differential Impedance Spectroscopy
Rogalla, Sönke; Kaiser, Sebastian; Burger, Bruno; Engel, Bernd
Konferenzbeitrag
Conference Paper
2019 Untersuchung einer galvanisch getrennten DC/DC-Topologie als Eingangsstufe eines PV-Modulwechselrichters mit Teilstringanbindung
Schöner, Christian; Rouffaud, Gilles; Probst, Leonhard; Schmidt, Heribert
Konferenzbeitrag
Conference Paper
2019 Spectrum Shaping Methods for Predictive Control Approaches Applied to a Grid-Connected Power Electronics Converter
Stickan, Benjamin; Rutquist, P.; Geyer, T.; Diehl, Moritz
Konferenzbeitrag
Conference Paper
2019 Applications of SiC Devices
Kranzer, Dirk; Hensel, Andreas; Thoma, Jürgen; Armbruster, Cornelius; Hercegfi, Patrick; Schönberger, Stefan
Aufsatz in Buch
Book Article
2019 Partial-Load Optimization of a High-Voltage Residential Battery Converter with Silicon Carbide MOSFETs
Probst, Leonhard; Kutzleben, Daniel von; Armbruster, Cornelius; Schöner, Christian
Konferenzbeitrag
Conference Paper
2019 Tiefsetzsteller für den Einsatz von 1500-V-PV Modulen an 1000-V-Wechselrichterbrücken
Siedle, Christoph; Liese, Stephan; Ulbrich, Sebastian; Göbkes, Helmut
Konferenzbeitrag
Conference Paper
2019 Netzimpedanzemulation zur Stabilitätsprüfung von Wechselrichter
Ackermann, Florian; Schlick, S.; Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2019 Modulare Leistungselektronik für Heimspeichersysteme
Probst, Leonhard; Armbruster, Cornelius; Ehrlich, Alexander; Bettermann, Hartmut; Appel, Tobias; Benner, Daniel
Konferenzbeitrag
Conference Paper
2019 Übergeordnetes Regelungskonzept für PV-Heimspeichersysteme und deren Anforderungen an die Leistungselektronik
Probst, Leonhard; Denninger, Rebekka; Gasser, Corentin; Armbruster, Cornelius
Konferenzbeitrag
Conference Paper
2018 Galvanical isolated microinverter with GaN transistors for photovoltaic modules
Hensel, Andreas; Armbruster, Cornelius; Rouffaud, Gilles
Konferenzbeitrag
Conference Paper
2018 PV-Lichtbögen sicher erkennen - der neue Produktstandard IEC 63027
Eger, F.
Poster
2018 PV-Lichtbögen sicher erkennen
Eger, F.
Zeitschriftenaufsatz
Journal Article
2018 Maßnahmen zur Teillastoptimierung von Ladeelektronik in PV-Heimspeichersystemen
Armbruster, Cornelius; Probst, Leonhard; Gasser, Corentin; Schöner, Christian
Konferenzbeitrag
Conference Paper
2018 Design and Commissioning of a 10 kV Three-Phase Transformerless Inverter with 15 kV Silicon Carbide MOSFETs
Thoma, Jürgen; Volzer, Benjamin; Kranzer, Dirk; Derix, David; Hensel, Andreas
Konferenzbeitrag
Conference Paper
2018 Lichtbögen und elektrische Sicherheit in PV-Heimspeichern
Eger, F.; Laukamp, Hermann; Bopp, Georg
Poster
2017 Loss-reduced reactive power control strategies for transmission system support with renewable energy sources
Köppe, H.; Engel, Bernd; Grab, Robin; Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2017 Analyse von Resonanzbildungen zwischen Wechselrichtern und Netz
Rogalla, Sönke; Ackermann, Florian; Moghadam, Hasanali; Stalter, Olivier
Vortrag
Presentation
2017 Symbiotic operation of wind and PV farms connected to the high voltage grid
Grab, Robin; Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2017 Lichtbögen und elektrische Sicherheit in PV-Heimspeichersystemen
Laukamp, Hermann; Tschupp, J.
Vortrag
Presentation
2017 DC arc fault scenarios and detection methods in battery storage systems
Eger, F.; Bopp, Georg; Freiberger, Dennis; Lang, Nikolaus; Laukamp, Hermann; Rouffaud, Gilles
Konferenzbeitrag
Conference Paper
2017 Highly efficient and compact single phase PV inverter with GaN transistors at 250 kHz switching frequency
Derix, David; Hensel, Andreas; Freiche, R.
Konferenzbeitrag
Conference Paper
2017 Untersuchung verschiedener Topologien zum Aufbau eines höchstintegrierten PV-Modulwechselrichter mit GaN-Transistoren
Hensel, Andreas; Schöner, Christian; Fuller, M.
Konferenzbeitrag
Conference Paper
2017 Large scale investigation of harmonic summation in wind- and PV-power plants
Ackermann, Florian; Moghadam, Hasanali; Rogalla, Sönke; Santjer, Fritz; Athamna, Issam; Klosse, Rainer; Malekian, Kaveh; Adloff, Stephan; Meyer, Marc Florian; Kaatz, Gesa; Schulz, Detlef; Bitz, Alexander; Schaefer, Nils; Fricke, Bjoern; Ghouti, Mohamad El
Konferenzbeitrag
Conference Paper
2017 Model predictive control of a 3-phase grid-connected B6-inverter with LCL-filter in abc-coordinates
Stickan, Benjamin; Reichert, Stefan; Diehl, Moritz
Konferenzbeitrag
Conference Paper
2017 Modulation scheme to improve the efficiency for low load operating points for a dual active bridge DC/DC-converter
Khani, M.
Konferenzbeitrag
Conference Paper
2017 Comparison of FPGA based control strategies (DDSRF-PI vs. State-Space Control) for grid connected inverters under grid disturbances
Mittwede, E.; Kern, J.; Schönberger, Stefan; Stickan, Benjamin
Konferenzbeitrag
Conference Paper
2016 Dynamische Stabilität von PV-Dieselsystemen
Singer, Roland
Konferenzbeitrag
Conference Paper
2016 Investigation of 3-level-topology MNPC for aerospace applications with SiC-MOSFET-based power modules
Schöner, Christian; Hensel, Andreas; Zambrano Cambero, J.C.
Konferenzbeitrag
Conference Paper
2016 Microgrids and PV-Diesel Systems
Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2016 Symbiotic Operation of Large Photovoltaic and Wind Power Plants
Grab, Robin; Ackermann, Florian; Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2016 Dynamisches Simulationsmodell für Q(U)-Regler und deren Steuerung durch einen Cluster-Regler im Verteilnetz
Salman, Ammar; Zacharias, P.; Bihler, Nicolas; Singer, Roland; Bader, M.; Rogalla, Sönke
Konferenzbeitrag
Conference Paper
2016 Small-disturbance voltage stability of OLTC & decentralized reactive power dropp control
Dallmer-Zerbe, Kilian; Berardo, D.; Salman, Ammar; Wille-Haußmann, Bernhard
Konferenzbeitrag
Conference Paper
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