worst-case scenario engineerNow reading one of the most exciting reports I've seen in my career I'll try to summarize it for #energysky later
There might be a way to cut down all the chaos inverters cause protective relays, maybe
Basically, what if we gave up trying to get IBRs to produce correct negative sequence because they're too slow anyway, and just force the PLL to lock with certain characteristics for the first four cycles or so of a fault. That way we can make relay decisions without EMTP modeling every inverter
It's not possible to make an IBR act like a generator for any long duration, but it might be possible to make them act like it for just long enough to trip high speed relaying. Doesn't solve every problem (you need high speed relaying for one) but it would solve several