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Dynamic Modelling Requirements for Users. David Cashman Grid Code Review Panel 20 th February 2013. Motivation. Current Grid Code specifications for Dynamic models are outdated and unbalanced: Different standards for Conventional Generators, WFPS, Interconnectors
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Dynamic Modelling Requirements for Users David Cashman Grid Code Review Panel 20th February 2013
Motivation • Current Grid Code specifications for Dynamic models are outdated and unbalanced: • Different standards for Conventional Generators, WFPS, Interconnectors • Increase in range of studies performed and software utilised by TSO: • PSS/e, DIgSILENT PowerFactory, DSA Tools • Variation in technologies included in model: • Conventional: Governors, Exciters, PSS, OEL and UEL protection • WFPS: Full Converter, DFIG, Control Systems • HVDC: LCC, VSC, Control systems
Approach Taken • Standardise requirements of models for all Users of the system irrespective of technology type • Planning Code Appendix updated to cover data and modelling specifications for all users • Define a standard Confidentiality Arrangement between the TSO and the Users • Bring requirements closer to SONIs Wind Farm Setting Schedule
Overview of Documents Modelling Requirements for Users GC Modification • Updated sections PC.A4-6 for data specifications for Generators, WFPS, Interconnectors • Text drafted to be inserted in the Grid Code as PC.A8 to define improved modelling requirements for all Users Dynamic Models Specification for Users • Supplementary document to be placed on TSO website. • Text outlines usability guidelines and software versions. EirGrid Confidentiality Agreement • Confidentiality Agreement the TSO will enter with the User if models are commercially sensitive
Main Updates to Data Specifications • PC.A4: for Generators mostly remains unchanged – one new section on Mechanical data – where appropriate and justified • PC.A5: New section for Controllable WFPS • Based on existing requirements in PC.A4.10 • Parameters of WTGs and Controllable WFPS required including electrical, aerodynamic, control and protection systems required • Harmonic and Short-Circuit Contribution of Controllable WFPS at Connection Point • PC.A6: for Interconnectors some changes to data requirements • PC.A7: for Demand Side Units unchanged • PC.A8: Dynamic Model Requirements for Users
Main Updates to Model Requirements • Users shall provide models for RMS and where required EMT simulation • Software packages required are defined: • Siemens PSS/e, DIgSILENT PowerFactory, DSA Tools TSAT • Source Code of models to be provided • Black box models are unacceptable • Sample cases of model to be provided demonstrating the correct functionality of the model
Confidentiality Agreement • The requirement is on the User to provide a model suitable for representing its plant • The TSO will enter a standardised NDA with Users where models are commercially sensitive • TSO required to share models with other TSOs, DSOs and third parties to perform duties • The TSO will agree to directly interact with the OEM in relation to models provided the OEM enters NDA • Ad-hoc NDAs with OEMs for specific plants will not be accepted