PSI Delivers Assistance System to Transmission System Operator TransnetBW

Dynamic Network Security Calculation in Operational System Management (DSIRE)

Berlin, June 2, 2021 – The transmission system operator TransnetBW GmbH has commissioned PSI Software AG with the delivery of a new system for the “Dynamic Network Security Calculation in Operational System Management” (DSIRE). The new software solution will be developed on the basis of the products PSIpassage and PSIneplan V10.

PSIneplan V10 is a modular network analysis system that enables both the analysis of steady-state network security with the help of load flow and outage variant calculations, as well as the investigation of dynamic processes in the network. For the evaluation of dynamic stability, the modules voltage stability and small signal stability are available in addition to the transient stability analysis. PSIpassage specializes in energy data management and the associated communication processes. The Java-based PSIpassage systems are already used by a large number of network operators, including for the KWEP, GLDPM, SOGL and MaBiS processes.

In the course of the energy transition and with the expansion of renewable energies and the gradual phase-out of controllable generation in conventional power plants, the system management in the power grid becomes more complex. Whereas transmission system operators used to control round 500 large power plants nationwide, today millions of smaller plants feed into the grid - mostly depending on the weather and independent of demand.

The combined system solution DSIRE will support TransnetBW as a critical assistance system for maintaining system security to monitor dynamic stability in both real-time operations and operational planning. DSIRE supports system managers and the operations planner in decision-making within the framework of the effectiveness check of corrective measures and thus makes an important contribution to being able to continue to operate the transmission network safely within the specified limits in the event of an increase in the utilization of the existing network infrastructure.

With more 1000 employees, TransnetBW GmbH operates the electricity transmission grid in Baden-Württemberg and thus secures the power supply in Germany and in Europe.

NEPLAN AG, headquartered in Küsnacht (Zurich) in Switzerland, is the developer of the network analysis system PSIneplan, and one of the world's leading companies in the engineering software market. NEPLAN has been part of the PSI Group since 2020.

The PSI Group develops its own software products for optimizing the flow of energy and materials for utilities (energy grids, energy trading, public transport) and industry (metals production, automotive, mechanical engineering, logistics). PSI was founded in 1969 and employs more than 2,000 people worldwide.