Power system data and test cases

When you start doing research on power systems, you often spend a lot of time on searching power system models to test your developed theories and methods. In the following, I am listing a number of power system test archives, where you can find static and dynamic power system models.

If you are aware of other power system model archives/repositories, which are missing in the list, or if one of the links is not working, please leave a comment at the end of this page.

University of Washington – Power Systems Test Case Archive

In this test case archive you can find a number of load flow test cases and dynamic test cases. The solved power flow data are generally provided in the IEEE Common Data Format [1]. An documentation of the format can also be found in the test case archive of the university.

Load flow test cases:

Dynamic test cases:

The above power system test cases and additional information about the data format as well as the test systems themselves can be found on the website of the Power Systems Test Archive of the University of Washington.

University of Illinois – Power System Test Archive

As it was recently announce on POWER GLOBE (see the announcement here) the University of Illinois – Information Trust Institute – Center for a Smarter Electric Grid (ICSEG) made a number of load flow test cases and dynamic test cases available on their website. The data are available in a variety of formats: PowerWorld, PSSE and PSLF.

Load flow test cases:

Dynamic test cases:

  • Illi 42 Tornado: Fictitious 42 bus 348/138 kV. PowerWorld Dynamic Studio format plus one-line diagram.
  • IlliniGMD 42 HEMP: Fictitious 42 bus 500/345/161 kV. PowerWorld Dynamic Studio format plus one-line diagram.

University of Edinburgh – Power System Test Case Archive

The Univesity of Edinburgh also provides a selection of test cases. The load flow data are in the MATPOWER format and the dynamic data for time-domain simulations are in the PSAT format.

Load flow test cases:

Dynamic test cases:

  • Iceland Dynamic Network Data: 118 nodes, 206 branches and 35 generators. All generators are equiped with AVR, 9 with power system stablizers and 6 with turbine governors. PSAT format plus one-line diagram.

University of Liège – Voltage Stability Test System

At the University of Liège a test system called Nordic System was developed, which is specifically intended for the study of voltage stability phenomena.

Access to the system model can be granted by Prof. Van Cutsem. The power system model is documented in a report, which will be provided together with the system model.

The IEEE PES Task Force on Test Systems for Voltage Stability Analysis and Security Assessment published on August 25, 2015 their report on “Test Systems for Voltage Stability Analysis and Security Assessment” (Technical Report PES-TR19) [3]. The report gives detailed information about two test systems, one of them being the Nordic System. The report contains network data and dynamic model data for e.g. synchronous machines and their controls. Moreover, the report provides data for two operating points (a stable and an unstable operating point). Lastly, the report discusses the issues of determining secure operation limits, power margins and corrective post-disturbance controls with respect to long-term voltage stability. For members of IEEE PES the report is free of charge available on the website of IEEE PES in the Technical Reports section.

University of Cyprus – Dynamic IEEE Test Systems

A group of researchers at the Center for Intelligent Systems & Networks (KIOS) has extended a number of the IEEE Test Systems with dynamic model data appropriate for carrying out time-domain simulation. The researchers derived the model parameters based on typical model data described in [4]. The dynamic model data are freely available on their website and are provided in different formats:

  • Plain text (*.pdf)
  • PowerWorld (*.pwd/pwb)
  • DIgSILENT PowerFactory (*.pfd)

Moreover, the test system data are documented in [5].

Dynamic test cases:

ALSETLab – Nordic 44

The research group of the ALSETLab has developed and uploaded Python resources to fetch and process the Nordpool market data to prepare case files in Modellica, COM 14 and PSS/E. The python scripts with some documentation can be found here on GitHub.

The available model is the Nordic 44, which was developed as an equivalent Nordic grid model.

Energinet: Danish static power system model

On Friday January 22nd 2016, the Danish transmission system operator Energinet announced on LinkedIn that they published a first edition of a static power system model of the Danish transmission grid.

The provided data are sufficient to calculate an AC power flow and represent the 2020 Danish transmission system until the country’s borders. Currently, the model data are available in a simple spread sheet format. However, Energient is planning to publish the model in the CGMES-format at a later time.

The power flow data can be downloaded here.

ENTSO-E: Power system model of continental Europe

The European network of transmission system operators for electricity (ENTSO-E) published at this year PowerTech in Eindhoven, Netherlands, a dynamic study model of the entire continental Europe power system. The model is documented in a paper [6], which was published as part of the proceedings and can be dowloaded from the website from ENTSO-E. According to the website from ENTSO-E the data (load flow and dynamic data) are available in three different formats: PowerFactory, Netomac and PSS/E. However, the access to the data is restricted and more information can be found on the website.


[1] Working Group, “Common Format For Exchange of Solved Load Flow Data,” Power Apparatus and Systems, IEEE Transactions on , vol.PAS-92, no.6, pp.1916,1925, Nov. 1973, doi: 10.1109/TPAS.1973.293571
[2] Prabha Kundur. Power System Stability and Control. McGraw-Hill Professional, 1994.
[3] IEEE PES Task Force on Test Systems for Voltage Stability Analysis and Security Assessment, “PES-TR19 Test Systems for Voltage Stability Analysis and Security Assessment”, 2015
[4] Anderson, Paul M., and Aziz A. Fouad. Power system control and stability. John Wiley & Sons, 2008.
[5] Demetriou, P.; Asprou, M.; Quiros-Tortos, J.; Kyriakides, E., “Dynamic IEEE Test Systems for Transient Analysis,” in Systems Journal, IEEE , vol.PP, no.99, pp.1-10 doi: 10.1109/JSYST.2015.2444893
[6] Semerow, A.; Hohn, S.; Luther, M.; Sattinger, W.; Abildgaard, H.; Garcia, A.D.; Giannuzzi, G., “Dynamic Study Model for the interconnected power system of Continental Europe in different simulation tools,” in PowerTech, 2015 IEEE Eindhoven , June 29 2015-July 2 2015, doi: 10.1109/PTC.2015.7232578

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