At present, the AC side of a BEEAM/HPF model uses harmonic power flow (h ≥ 1), while the DC side uses the standard Modelica DC components (which are time-based). It might make sense to fully generalize the HPF model for both AC and DC components, so that any h ≥ 0 is valid (with h = 0 representing DC). This would eliminate the need to use different connector types for the AC and DC sides and could provide a path for "universal input" device models and similar in the future.
This would require a re-thinking and standardization of BEEAM model architecture.