3 ms·
You need to consider that a master clock signal transmitted through air will arrive at a different time than an AC power wave transmitted through a wire. A mil
by justlikereddit 1y ago
You need to consider that a master clock signal transmitted through air will arrive at a different time than an AC power wave transmitted through a wire.
A millisecond latency will cause a significant out of phase shift to the AC signal too.
The AC data you want is already codified in the power signal
- tenthirtyam 1y ago> A millisecond latency will cause a significant out of phase shift to the AC signal too. Ooh, good point. But then, we have I think micro- or even nano-second clock sync over public internet now. Or use (reliable) GPS timestamps codified in the sync signal. > The AC data you want is already codified in the power signal You're right, but: > there needs to be more communication across the grid than just responding to the locally observed frequency Maybe large stations need a grid-wide sync signal that is independent of load, but small (e.g. domestic, community) suppliers just latch on the observed AC (which is easy for an inverter).