  This paper shows that a relation can be found between the voltage at the
terminals of an inverter-interfaced Renewable Energy Source RES and its optimal
reactive power support. This relationship, known as Volt-Var Curve VVC, enables
the decentral operation of RES for Active Voltage Management (AVM). In this
paper, the decentralized AVM technique is modified to consider the effects of
the realistic operational constraints of RES. The AVM technique capitalizes on
the reactive power support capabilities of inverters to achieve the desired
objective in unbalanced active Low-Voltage Distribution Systems LVDSs. However,
as the results show, this AVM technique fails to satisfy the operator objective
when the network structure dynamically changes. By updating the VVCs according
to the system configuration and components availability, the objective
functions will be significantly improved, and the AVM method remains resilient
against the network changes. To keep the decentralized structure, the impedance
identification capability of inverters is used to find the system configuration
locally. Adaptive VVCs enable the decentralized control of inverters in an
online setting. A real-life suburban residential LV-DS in Dublin, Ireland is
used to showcasing the proposed method, and the effectiveness of proposed
resilient active voltage management technique is demonstrated.
