Future large scale HVDC systems will have components from different manufacturers, however, this will require multivendor interoperability. This paper studies multi-vendor interoperability of HVDC protection IEDs using hardware IED prototypes developed by industrial and academic partners. Multi-vendor interoperability tests are performed using realtime hardware-in-the-loop simulations based on open-access converter models configured to represent the proposed three-terminal design of an extension to an existing point-to-point HVDC system in the UK. In particular, this paper focuses on developing testing procedures for IEDs in a multi-vendor environment and identifying possible interoperability issues. Interoperability of two hardware IEDs is demonstrated during primary protection, IED failure backup protection and breaker failure backup protection. In each case, the protection scheme operates correctly and it is shown that, in the studied scenarios, the protection IEDs are interoperable.
M. Wang, G. Chaffey, D. Van Hertem, I. Jahn, F. Page, K. Ishida, K. Kuroda, L. Kunjumuhammed, I. Cowan, B. Ponnalagan, M. Rahman, O.D. Adeuyi, Presented at the 15th International Conference on Developments in Power System Protection, DPSP, Liverpool, 9 - 12 March, 2020
KEYWORDS: Multi-vendor interoperability, HVDC IED testing, HVDC grid protection, fully selective protection strategy