  Dynamic operating envelopes (DOEs), as a key enabler to facilitate DER
integration, have attracted increasing attention in the past years. However,
uncertainties, which may come from load forecast errors or inaccurate network
parameters, have been rarely discussed in DOE calculation, leading to
compromised quality of the hosting capacity allocation strategy. This letter
studies how to calculate DOEs that are immune to such uncertainties based on a
linearised unbalanced three-phase optimal power flow (UTOPF) model. With
uncertain parameters constrained by norm balls, formulations for calculating
Robust DOEs (RDOEs) are presented along with discussions on their tractability.
Two cases, including a 2-bus illustrative network and a representative
Australian network, are tested to demonstrate the effectiveness and efficiency
of the proposed approach.
