DELIVERABLE 1.2 | NOVEMBER 2023
Introduction of the report
This whitepaper delves into the intricacies of managing interactions in Multi-Terminal Multi-Vendor (MTMV) High Voltage Direct Current (HVDC) systems. It underscores the need for comprehensive understanding and strategic approaches in conducting interaction studies. The whitepaper also acknowledges the existing network codes and T&D Europe guidelines, suggesting further development on these bases.
Main Findings:
- Understanding interaction phenomena in hybrid AC/DC grids is crucial for optimal design and operation. The whitepaper justifies the use of Electromagnetic Transient (EMT) simulation tools for interaction analysis due to their wide frequency spectrum coverage and stresses the need to extend the interaction analysis over the DC side of MTMV HVDC grids.
- A structured workflow is introduced for conducting interaction studies in MTMV HVDC projects. The focus is on validating system interoperability through stakeholder collaboration, effective model integration, meticulous testing, and insightful analysis.
- The whitepaper evaluates roles and responsibilities of various stakeholders in interaction studies. It categorizes stakeholders into vendors, integrators, and supporting third parties, recommending a flexible approach to role engagement depending on the project phase.
- Different scenarios of converter Control and Protection (C&P) function openness are explored. The paper discusses how varying openness levels affect methodological considerations, stakeholder responsibilities, and intellectual property (IP) risks.
- Distinctions between offline and real-time simulations for MTMV HVDC are analyzed. The paper evaluates various parameters including model sharing procedures, performance, and accuracy, advising stakeholders to select the most fitting simulation tool according to their role in interaction studies.
The whitepaper offers a comprehensive view of both strategic and technical aspects of interaction studies within MTMV HVDC systems. It emphasizes the need for precise and timely studies, stakeholder collaboration, and an understanding of converter openness and simulation tool capabilities to develop resilient and secure MTMV HVDC systems with efficient vendor integration.