  End-users more often decide to invest in distributed generation (DG) units
that help them in decreasing electricity bills and allow them to become a
market player by selling the excess produced electricity. However, the
installation of DG is often limited by technical constraints of the network,
standards, and national grid codes. As a method for removing the mentioned
obstacles, the potential of dynamic operating envelopes (DOEs) is recently
becoming recognized as a way for maximizing the benefits of installing DG. In
this paper, we present an improvement of the already developed models that
often neglect voltage unbalance constraints or are not based on an optimization
approach. To test the model, two realistic case studies are defined. The
results show that not all technical constraints are equally important, that the
voltage unbalance constraint impacts the calculated DOEs for single-phase
installed DG units, and that neglecting the temporal and spatial component in
determining the limitation power is inadequate.
