I’m setting up a PyPSA model and have an issue where I’ve used two unidirectional links to model interconnector imports and exports (as they have different p_noms in each direction). However, when I’ve extended this to include expansion modelling the model is importing and exporting at the same time. Should I just model this as a bi-directional link setting p_min and p_max to the required values or can I add a constraint to restrict importing and exporting at the same time (appears to be caused due to the ramp limits).

Thanks

Tried bi-directional links and appears to resolve the issue, just want to see if it can be done with unidirectional links