Sujet : Re: The Spanish Grid Drop-out - recently released information.
De : jeroen (at) *nospam* nospam.please (Jeroen Belleman)
Groupes : sci.electronics.designDate : 12. May 2025, 22:25:12
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vvtovo$1a4th$1@dont-email.me>
References : 1 2 3 4 5 6
User-Agent : Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0
On 5/12/25 21:42, Don Y wrote:
On 5/12/2025 7:31 AM, Theo wrote:
A naive question: why do we need to get these signals from the grid at all?
Why can't we broadcast a synchronisation message on something like LW radio
that is picked up by every generator large or small? Then the network
operator can monitor what's happening and adjust the signal as appropriate.
How have we managed to distribute electrical power over huge swaths of land
from multiple independent operators WITHOUT such a mechanism?
I don't think that using broadcast radio for real time mains
grid control is a good idea. It would be far too unreliable.
To first order, power plants adjust the power injected into
the grid by observing the grid frequency. When the frequency
drops, the injected power is increased.
This says nothing about the dynamic behaviour, which is far
more involved, and variable too. Apparently there are some
issues with that on the European grid.
Jeroen Belleman
[Snip...]