Isochronous load sharing lines for generators in parallel (Island system) 1

[NickParker]

I read that for this scheme to be implemented, the speed controllers of all the turbines have to communicate with each other; but I don't see anything regarding AVR/Excitation on the same units.

How about AVR controls on the generators for this scheme?
- Do the AVRs of all the generators need to communicate?
- (or) Voltage droop mode implemented on all the generators

 

[waross]

If the loads drop off for any reason, droop will limit the over-frequency to the droop percentage.
If loads increase, the frequency will drop and at full load the frequency will be low by the droop percentage.
If the load increases further, the frequency will drop further until something trips, either from overload or under-frequency.
Depending on several factors, loss of load or increased load may restore ISO control.NOt likely but possible.
Too bad we can't get over coffee for a few hours. I don't think that we have any disagreements, just misunderstandings. Probably my fault.

--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[crshears]

Next time I'm out west, coffee would be excellent; I fully agree we're more than likely just using different expressions.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]