Dear all,
I'm looking to get a bit of help in formulating a custom OPF constraint.
Conceptually this seems easy but somehow I can't translate it into code!
I'm trying to incorporate a very simple HVDC model into the OPF, whereby
the two terminals of the HVDC link are simply modelled as generators. Of
course, to make this realistic, I need to add a constraint to ensure
that the two generators have equal and opposite active powers: so the
sending end will be a negative generator absorbing power from its local
grid, with the receiving generator being a positive injection.
One approach I considered is adding a new free variable to the OPF to
describe the flow on the HVDC link:
om = add_vars(om, 'ThroughFlow', 1)
Then I want to add constraints so that one generator has PG =
ThroughFlow and another has PG = -ThroughFlow. I'll also want some
bounds on ThroughFlow.
How do I identify the two generators this constraint should apply to?
And how do I formulate it?
Any advice or insights are greatly appreciated!
Many thanks all,
Paul
--
Dr. Paul Cuffe,
Senior Researcher,
Electricity Research Centre,
University College Dublin.
Phone: +353-1-716 1743
