Grid-forming Power Converter

With our expertise to your solutions

The transformation of the power grid as part of the energy transition requires a reorganization of tasks. The System Stability Roadmap regulates this process. With our expertise and practical research approaches, we support you as a strong partner on this journey.

We deliver innovative regulatory frameworks and cutting-edge testing and modeling techniques to future-proof your systems.

Leverage our extensive experience and scientific expertise to drive your projects forward efficiently.

Our services

Knowledge Transfer

Customized training courses
for continuing education
in the network context

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Device Development

Development of customer-specific
power converters
(ready for roadmap system stability)

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Control System Design and Optimization

Development of grid-forming and grid-controlled regulations

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Prequalification

Tests in accordance with Roadmap 2030 & global standards

Creation of electrical models
(white box/black box)

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Innovations and Results: Projects, Patents, and Publications

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Projects

Selected Research Projects

Netzregelung 2.0

The stability of the electrical grid system in Germany, even with high proportions of power converters; 2017 - 2022

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PnP Netze

Grid-forming control for distributed power converters; 2018 - 2022

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RuBICon

Development and validation of innovative concepts for network restoration after large-scale power outages; 2019 - 2023

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Leitning

Power converters for a robust and reliable energy supply by integrating converter based "green" generators; 2020 - 2024

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F-HiL Reloaded

Development of a test infrastructure for the normative validation of dynamic processes of grid-forming decentralized generation plants; 2023 - 2026

Presseinformation

GFI-Pilot

Piloting grid-forming converters in the distribution grid; 2025 - 2028

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Publications

2025	Publication	Case study: interoperability of two independently designed grid-forming converters
2024	IEEE report	Innovative Teaching Methods for Modern Power and Energy Systems (TR 120)
2024	Publication	Analyzing Grid-Forming Inverter Controls: A Study on Feedforward Loop and Damping Characteristics
2023	Publication	Power Hardware-in-the-Loop Validation of Grid-Forming Control and Current Limitation for Start up of Induction Motors in Microgrids
2023	Presentation	Combined Real-World Sites, RCP & P-HiL for interoperable GFms Validation in Microgrid
2022	Publication	Voltage Phasor Based Current Limiting for Grid-Forming Converters
2020	Publication	Overview on Grid-Forming Inverter Control Methods
2019	Publication	Power Hardware-in-the-Loop Testbed for High Frequency Interdependency Issues of Inverter-Based Generation
2018	PhD report	Development of a P-HiL capable RT validation environment for stability testing of electrical grids (translated)
2018	Publication	Enhanced Grid-Forming Inverters in Future Power Grids

Patents

DE10140783	Doop Control of grid-forming inverter for parallel operation (SelfSync)
DE102014223441	Fault Detect for fast contribution of power converter
DE102016203123	Extension of droop control for grid-forming inverter (SelfSync+)
DE102019214682	Power Inverster for protections elements of grid faults
DE102020200673	Current limiting for power inverters with virtual impedances
DE102021206502	Current limitation for GFm inverters with P/Q prio (SelfLim)

Do you have any questions or would you like to have more information?

Schedule a consultation with our expert and let us answer your questions!

Contact Press / Media

Tobias Erckrath

Fraunhofer IEE
Joseph-Beuys-Str. 8
34117 Kassel

Phone +49 561 7294-1569

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