HIL Simulation to Assess Interaction Risks of HVDC Systems for Upcoming Grid Development

Increased penetration of HVDC and FACTS in the AC network impact's the grid performance and reliability. When HVDC links are connected in close proximity, such devices may have undesired interaction and impact on AC network performance. To assess these risks, offline and real-time (RT) simulation are conducted by vendors, utilities or third parties. The objective of this paper is to describe the use of hardware-in-the-loop (HIL) simulation with physical C&P (control and protection) cubicles in an industrial context. Three innovative projects with focus on interaction studies are conducted at RTE facilities and the results are presented in this paper. Challenges and experiences for interaction studies in HIL simulations are also provided.