Dear customers and partners,

Our newsletter reports about the current energetic news from the PSI concern, and in par-ticular provides insight into internal developments, the ongoing enhancement of our solu-tions, and information about upcoming events.

This newsletter covers the following topics:

  • Current news/News

    • News about the organization
    • R&D - News about ongoing research activities

      • IDiNA - This project funded by the Federal Ministry of Economics and Technology has begun on April 28
      • InnoSys 2030 - Part 3 | TTG/PSI field test

    • Second version of the IT security law passed
    • The IoT gateway enables secure connection of additional data sources

  • Function(s) of the quarter

    • PSIcontrol and the BDEW grid traffic light concept

  • Announcements

    • Online events 2021 - Our webcasts are continuing ...

We hope that this provides you with interesting reading and numerous insights.
Do you have any comments/suggestions/critiques about our newsletter as a whole, individu-al articles, or topics which you would like us to cover? Please feel free to contact us:.

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On behalf of the entire business unit, I wish you a beautiful summer and vacation time
Greetings from Aschaffenburg, Dortmund, Oldenburg, Berlin, Aachen, and Karlsruhe

Best regards,
Christiane Kunkel
on behalf of all EE staff

News about the organization

Since February 1, the Product Development Department has been managed with twice the energy: Dr.-Ing. Andreas Kubis has joined our longtime director Andreas Scheurich as Division Director to strengthen the strategic product development.

Since 2019, Dr. Andreas Kubis has been responsible for the research and innovation strategy of the business unit Electrical Energy of the PSI Software AG; after having been entrusted with the setup and expansion of the Dortmund office in 2017. He will continue to work as Research & Development department manager in addition to his new function. This will facilitate accelerated integration of the results of the ten ongoing research project into the product development.

"I am looking forward to working with, and the strengthening by, Andreas Kubis. In our business, it is a special challenge to develop high-availability software which provides focused solutions for the problems of our customers and at the same time requires expertise in software development, grid operations, and asset management. I welcome the strengthening of the product development by an expert who is already active in the energy industry, and who is in particular focused on applications."
>>> Andreas Scheurich, Director of the Product Development Division since 2011 <<<

"With our products, our business unit Electrical Energy provides a proven and significant contribution to the energy transition. We will continue to fulfill this responsibility in the future, and therefore we are heavily involved in innovation and research projects related to the technical challenges ahead. We endeavor to intensify the knowledge transfer from the national and European research to actual applications - our products. Our particular focus is on the users of our software. They must always have full situational awareness and benefit from modern AI-based decision support. I look forward to exciting innovations which enable our users to operate electrical grids stably."

>>> Dr.-Ing. Andreas Kubis, Director of the Product Development Division and Manager of the Research & Development Department <<<

R&D -News about ongoing research activities

At this point, we would like to update you about the ongoing projects in our research department. In this quarter, we have decided to announce the initial approach in the research project IDiNA and the continuation of the InnoSys 2030 series whose representation concept we will cover in more detail.

IDiNA - This project funded by the Federal Ministry of Economics and Technology has been started on April 28

News from Research & Development: Together with six partners, PSI contributes to the research project IDiNA which is coordinated by the Otto-von-Guericke University in Magdeburg, Germany. The project "Intelligent digitization of the energy supply to optimize grid operation and increase acceptance" which is funded by 7th energy research program of the Federal Ministry of Economics and Technology, will advance the provisioning of information by end customers to further new business models. For the first time, IDiNA focuses on the actual value of an information which is based on the value-add in existing or future processes for grid management, energy markets, or in changing consumption behavior of residential and corporate customers. The contribution of PSI is the development of a validation platform for innovative digitization applications for grid operations. This enables research partners to validate their new research results with actual data such as historic measured values and grid states. In addition, PSI intends to develop and offer new Function-as-a-Service (FaaS) business models for customers and partners.

The kickoff meeting on April 28 marked the start of the project work.  The PSI team is currently working on an initial overview of the complexity and variety of the information exchange processes in the energy system, and is examining the state of the research related to converging IT-OT system architectures. In addition, a gap analysis of existing standards for data models and processes is performed. A workshop to establish required actions related to the existing information exchange processes and data models was scheduled in June. In additional workshops, the results are specifically compared with the status quo of the infor-mation and communication base of the municipal utilities Wunsiedel and Hassfurt in order to identify challenges and to derive necessary measures.

This research project is funded by the Federal Ministry of Economics and Technology (FKZ: 03EI4024)

InnoSys 2030 - Teil 3 | TTG/SI field test

In the previous article in this series about the joint research project "InnoSys 2030", we have presented important terms and the concept of curative congestion management in electrical trans-mission grids. As part of this project, a field test is performed in cooperation with the German transmission system operator TenneT TSO GmbH. The third part is focused on the visualiza-tion concept of the field test and the question of how to provide the best decision support to the system manager in critical grid situations.

Before covering the details, first the conceptually important difference between curative and preventive measures is described again. A curative measure is defined as a measure which after an actual fault occurrence in the grid (so-called (n-1) case) provides a quick and safe resolution. In contrast, a preventive measure affects currents and voltages as well as the utilization of equipment such as an overhead powerline prior to the fault occurrence; this is the so-called base case or (n-0) case.

The congestion management module "Preventive and Curative Congestion Management" (PCCM) which has been developed for the field test determines, assesses, validates, and proposes combinations of both preventive and curative measures for the system manager. Here, new ways for presentation of information are required since the traditional visualization concepts are reaching the limits of what users can intuitively understand and process.

The particular challenge is to ensure the fast understanding of problem situations as well as appropriate reduction of information, yet providing the specific detail information which is relevant to the case. This requires an information hierarchy and appropriate aggregation. Furthermore, the user interface has to be designed for fast and focused "drill down".

Control plan for preventive and curative measures  [1]
Control plan for preventive and curative measures [1]

The presented control plan shows examples of the lookahead calculation results of the PCCM for several future grid situations. The upper part shows the findings situation. The color coding starts at green for "non-critical", followed by orange and red and finally purple for "extremely critical" which supports fast understanding of the respective future grid states. The actual number of potential violations of physical limit values is stored in the number representations. Therefore, potential limit violations are distinguished as current findings in the base case or (n-0) case, and as current findings in contingencies, meaning the various simulated fault cases (n-1).

The calculated countermeasures are shown in the lower part and are divided into preventive measure for use in the base case ((n -0) case) and curative measures for very fast use after the occurrence of a fault ((n-1) case). The blue color indicates the adjustment of setpoint values or a change of the initially planned schedule of the respective operator. For example, the system suggests to adjust the infeed of the generator "380-GEN_15" at 10:30. In addition, it has been calculated that for this point in time, a curative tap change of the transformer "PST_14" for the (n-1) case (here: loss of the element "380-GEN_23") would be required in order to prevent critical utilization of other equipment. Preventive and curative measures work in synergy and must be considered and applied in their combination. The ideal case is shown for which at 10:30, all identified critical utilizations (the four findings shown in pur-ple) can be counteracted with the measures.

Detail view for a timestamp [1]
Detail view for a timestamp [1]

If the system operator wants to learn more about a specific point in time, a detail view can be displayed. An example is shown in the detail view for timestamps which contains infor-mation about critically utilized equipment before and after the realization of the measures as well as the specific measure packets including the actual preventive and curative measures. Additional representations not shown here include, for example, an assessment of the meas-ure packet and its characteristic with regard to the previously defined KPIs. Examples in-clude monetary costs, technical sensitivities, or the number of adjusted actors in the grid.

In the next part of the series, we will describe the setup of the field test which will be per-formed in cooperation with TenneT TSO GmbH in 2021.

This research project is funded by the Federal Ministry of Economics and Technology (FKZ: 0350036)

[1]  J. Hachenberger et al.: Development of a Preventive and Curative Congestion Manage-ment Module for Close to Real-Time Transmission System Operations, ETG Congress 2021, Wuppertal / virtual.



Second version of the IT security law passed

The German Bundestag has passed the "Second law for increasing the security of information-processing systems" on April 23, 2021. In the session on May 7, 2021, the German Bundesrat has passed it by foregoing the mediation proceedings between Bundestag and Bundesrat; it became effective by publication in the Federal Gazette on May 27, 2021.

The major changes have already been described in the previous newsletter. It must be noted that for the already expected installation requirement for attack detection systems, May 1, 2023 has been firmly established as deadline in the law.

Brand new - The IoT gateway enables secure connection of additional data sources


The Internet of Things (IoT) has now arrived in many areas of life; it economically acquires and processes large amounts of data. This increasingly applies to process interfaces, too, where technologies such as LoRaWAN, 450MHz radio, and lightweight protocols like MQTT, AMQP, or REST transfer data to IoT platforms.

Traditional control systems do not provide the appropriate interfaces for receiving the data and for processing the data with standard procedures. The IoT gateway software of PSI GridConnect GmbH closes this gap and realizes a powerful protocol converter and inter-face between modern IoT protocols and platforms, and the classic IEC 60870-5-104 world.

The IoT gateway can query and convert raw data and measured values from a variety of data sources and forward it via the IEC 104 protocol to conventional control center systems.
With the LoRaWAN, raw data can be received, decoded, and forwarded directly by the Lo-RaWAN network server (LNS), for example via the MQTT protocol.

Often, the data are already aggregated in an IoT platform from where they can be specifically exported via various interfaces. The IoT gateway supports typical cloud IoT protocols such as MQTT, REST, and Webhooks as well as Publisher/Subscriber mechanisms.

In combination with an IEC 104 control center, it can be integrated like a normal RTU. The configuration of the mapping of the IoT data and the forwarding to the IEC 104 objects is done in the configuration of IoT gateway. An appropriate mapping file can also be uploaded to the IoT gateway.

The IoT gateway is available on various platforms.

The IoT gateway runs on an embedded platform with the hardened Nenux operating system and belongs to the PGC-6000 product family. Powerful Intel multicore processors and six or nine Gigabit Ethernet interfaces are available.  The Nenux-based IoT gateway can run as VMware image in virtual environments. In the future, a Docker image will also be offered.
In order to meet high availability and scalability requirements, the IoT gateway software al-so supports execution in distributed streaming platforms such as Kafka which can be real-ized on premise as well as in a private or public cloud. The IoT gateway can operate in a cluster. The combination with the Kafka streaming platform enables persistent and redun-dant caching of the data. High performance advanced processing and enhancement of the da-ta can also be performed in the cluster.

Application areas

  • LoRaWAN - IEC 104
  • MQTT/AMQPQ/WebHooks/REST - IEC 104 converter
  • Kafka - IEC 104 converter

Function(s) of the quarter

PSIcontrol and the BDEW grid traffic light concept

The electrical power supply system is undergoing major changes, and the distribution grids are important components of this transformation processes. The increasing integration of re-newable energies in the low and medium voltage level, the funding of electric mobility, and the efforts to accelerate the integration of the energy grids (gas, district heating, electricity) result in increasing utilization of the distribution grids which must operate ever closer to their operational limits. In order to ensure security and stability of the distribution grids in the future, the generation and consumption behavior must be coordinated as needed. The ob-jective of the BDEW traffic light concept is to provide a transparent and non-discriminatory solution for this problem. Enhancements to this concept are designed to provide the founda-tion for future congestion management in the distribution grid.

The precise details of this concept and how the realization of this concept can affect the op-eration of the distribution grid were covered in our May 11 webcast in which our colleague Daniel Mayorga González (Grid Operations Researcher) exclusively updated the PSIcontrol User Group about the current state.  We thank all participants for their interest and the in-depth exchange, and look forward to additional webcasts after the summer break!


Online events 2021 - Our webcasts are continuing ...

Knowledge transfer is our most important tool - in particular for crisis situations. Therefore, we offered a multi-faceted set of webcasts about relevant topics in the first half of 2021.

For us, and probably also for you, this kind of information transfer was a relatively new experience since web conferences of the past had been used primarily for small meetings and not for larger events. Yes, Covid advanced the digitization, and companies had to experiment with the tools available in the market in order to find the most suitable platforms. We are glad that we were able to stay in touch with you via WWW and thank you for your continued interest in our webcasts during the first and second quarters of 2021.

We will take a summer break and continue with a new set of webcasts.

In the meantime, we will work intensely on compiling a comprehensive webcast offering to keep you up to date about our solutions and research activities. After the summer break, we will start the second round.

We have listed the topics of the currently envisioned webcasts below. You will receive the invitations as soon as the topics and dates are finalized:

  • Load and charging management
  • IoT gateway
  • Redispatch
  • Curative grid management
  • Grid planning
  • Field force management
  • PSIprins
  • AI-based maintenance scheduling
  • Switching management

Are you interested in a webcast about a topic which has not been covered here? We look forward to hearing from you. Please send your topic requests by e-mail to .


PSI Software AG
Business Unit PSI Energie EE
Boschweg 6
63741 Aschaffenburg

Your editorial team 2021|Q2
Dr. Andreas Kubis | Anna Bajric | Stefan Wietzke | Klaus Becker | Christiane Kunkel | Wolfgang Fischer | Dr. Michael Wolf

Header photooto: © Katja-Xenikis, sdecoret, madpixblue |; InnoSys: © InnoSys2030; IoT-Gateway: © PSI GridConnect