Switchbox @switch.box · May 9 It was the worst of inverters: Grid-following inverter controls can interact in weird ways, and this _could be_ (we don’t know yet!) one contributor to the sub-synchronous oscillations that were observed right before the blackout. Read this paper www.sciencedirect.com/science/arti... or 👇(6/9)
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So it’s not a hardware problem, its a software problem (solar and wind generally vs the controllers that feed their generation into the grid). Good news…software is cheap! And to develop good software, we need lots of training data. And standards! More for nerds 👇 (7/9)
Those sub synchronous oscillations have been observed in the European grid since at least 2001, in Winter and in Summer. Are they suggesting that was solar inverters? Or bears?