Back in 2019, we finished an UG project creating a timeline of #HVDC projects πππ and also added the what was then the newly proposed π¦πΊπΈπ¬ #suncable project.
This just looked at one aspect (the most technically challenging of all βοΈ) the undersea cable.
I also wrote a (very short) article for the #VSC#HVDC newsletter that @OfficialUoM Prof. Mike Barnes was editing on the news coming out of Australia
Here are some figures that might help put the #suncable project in context.
2/x
Aug 27, 2019 β’ 7 tweets β’ 3 min read
OK, most of the following is textbook stuff on #HVDC but just a quick reference for what a "low-voltage metallic return" - the faulty part of #Basslink - is used.
Basslink is a monopolar HVDC system and the original design was based on an earth return. This is quite typical of monopolar #HVDC systems as it reduces cost (requires only one cable) and losses (again because of one cable)
Reading through @OtherProfGreen summary of the 9th August #UK event, the similarities to the 25th August 2018 #Australian separation event across the #NEM are very interesting to observe.
Firstly, they are all attributed to lightning strikes.
And although the #UK one was easy to identify, the #QLD one took a bit of forensic investigation as it happened at a time that no weather warnings were out for the area.