European Project Releases Open Library of Standardized HVDC Models
With the growing complexity of energy systems and the rise of High Voltage Direct Current (HVDC)technology, model and data exchange are more critical than ever. The HVDC-WISE project, a Horizon Europe project on reliable and resilient AC & DC grid design, is addressing this need by proposing a workflow based on the latest IEC CIM for Dynamics (IEC61970-457:2024) and Common Grid Model Exchange Standards. A key component of this initiative is the development of HVDC-Wise lib, a library of standardized models designed to ensure interoperability across various platforms, which the project just released on Github.
The HVDC-Wise lib is a GitHub repository which can be found here. It contains a collection of HVDC equipment models that adhere to the IEC CIM/CGMES standard format. The library offers models split into static and dynamic parts, along with comprehensive documentation. The static part includes data such as model topology and equipment parameters, while the dynamic part focuses on mathematical equations and artifacts, often representing the behaviour of control systems. This comprehensive modelling approach ensures that both static data and dynamic parts are accurately represented and linked.
The approach used to develop the models in the library is detailed in the project's deliverables D4.2 Technology Modelling and D4.3 Library of Models. Released under the European Union Public Licence v. 1.2 (EUPL),this open-source library supports ongoing standardization efforts for dynamic-model exchange in HVDC equipment.
The HVDC-Wise lib allows users to assess the readiness and limitations of existing standards for dynamic studies involving HVDC equipment. It also provides a platform to test the implementation of proposed workflows, release models useful for the power system modelling community, and host additional models from various contributors. The library includes models selected to test different aspects of modelling needed for the development of hybrid AC/DC systems. This includes the capability to model dynamic behaviours through equations (in MATLAB or Modelica languages) or through black-boxed models using the Functional Mockup Interface(FMI) standard. This flexibility ensures that the library can accommodate various modelling needs and extensions.
The library's two-part structure, dividing models into static and dynamic parts, ensures that both equipment data and control behaviour are captured and made available for exchange. This approach balances long-term interoperability and flexibility by supporting multiple formats within a standardized framework for the dynamic part of the model. Engineers and researchers in the field of power systems are invited to contribute to the library, including importing and using models in applications or standardizing their models and providing feedback. This will further enhance the quality of the library.
The developed models demonstrate that the proposed workflow can be implemented with different variants for the dynamic part, including Modelica equations, MATLAB equations,and FMU. This has shown that current standards are sufficient to develop some models, while extensions are needed for others.
Enhancing Interoperability with HVDC-Wise lib
The HVDC-WISE project has identified gaps in the IEC CIM standards and proposes modifications to address these, ensuring that the models remain relevant and effective. The long-term goal is to enhance interoperability and collaboration across the energy sector.
The HVDC-Wise lib is positioned as a critical resource for users interested in integrating HVDC models into their environments, as well as for stakeholders working toward the standardization of HVDC models at a national or international level. As the library evolves, it will continue to support IEC CIM standards and promote the seamless exchange of dynamic modelling data, driving innovation in the field of HVDC technology. Mature models could be integrated into the CRESYM collaborative open-source library (CoLib), with the HVDC-Wise lib model documentation based on the CoLib documentation template to ensure simpler integration.
By fostering collaboration, encouraging contributions from the community, and supporting international standardization efforts, the HVDC-Wise lib can be a foundational tool in the development of HVDC globally. This innovative library advances efforts in the energy industry to adopt HVDC technology on a broader scale and contributes to the overall resilience and efficiency of the electricity grid.
HVDC-WISE is supported by the European Union’s Horizon Europe programme under agreement 101075424 and by the UK Research and Innovation (UKRI) under the UK government’s Horizon Europe funding guarantee[grant numbers 10041877 and 10051113]
