Investigating multi-vendor HVDC systems:
Today, each HVDC system is constructed by a single manufacturer, so there are no compatibility issues between different providers. But when more such systems are integrated and they start comprising more than two connection points, we will find ourselves in a multi-vendor environment, so compatibility issues will arise.
This demonstration entails simulations and laboratory tests to assess and validate combinations of HVDC convertors in different topologies and produced by various manufacturers, so that objective conclusions can be reached for future decisions.
Upgrading existing infrastructure with new technologies:
In the Stevin project, two new technologies are being implemented. High-temperature low-sag (HTLS) conductors are being used to boost the capacity of existing lines and/or corridors. This technology helps us to integrate offshore wind power without increasing the visual impact of our infrastructure.
Meanwhile, cross-arm insulators – the second new technology – can serve as structural elements to decrease pylon size and reduce electromagnetic field (EMF) impact on the environment, whilst operating the line at the highest voltage level (380 kV). This demonstration project will definitely pave the way for the future use of both these new technologies.