Flexible local network voltage and active power controller

Project state
Electricity supply in rural areas.
Electricity supply in rural areas: High infeeds from photovoltaic and wind energy can stretch the grid to its load limits.
Bild: hykoe -

Especially in rural areas, such as those found in the region supplied by Pfalzwerke Netz AG, the energy supply grids are reaching their load limits. This can result in grid voltages that exceed the permitted tolerances. In the upcoming grid expansion stages, it is therefore essential that these circumstances are taken into consideration when managing network operations.

The FLOW-R project is concerned with the development of measures that can be deployed in a modular manner and are also scalable in several dimensions. The main objective of the project is to develop a voltage and active power controller that shall be used in meshed low-voltage grids. This control shall be linked to other controllers to enable communication between the elements.

The researchers first of all want to study mathematical models to simulate typical networks. Following the analysis and design phase, the researchers then want to construct a prototype by the end of 2016 that will be initially investigated in the laboratory and subsequently in a comprehensive field test in a selected grid area belonging to the Pfalzwerke network transmission operator.

Pfalzwerke Netz AG is working together in this project with partners from different areas:

  • Kaiserslautern University of Technology is responsible for several work packages: analysis, primary technology concept, simulation, laboratory testing and benchmarking.

  • Power Plus Communications AG is managing the work package communication and security concept in which the Pfalzwerke project partner is involved.

  • Walcher GmbH & Co. KG is responsible for designing and creating the prototype.

Project duration

10/2014 – 09/2017


Dr. Ingolf Quint
Project coordinator
Pfalzwerke Netz AG
Voltastr. 1
67133 Maxdorf, Germany

Basic information

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