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"A Resilient Sequential Service Restoration Framework for Unbalanced Ac" by Ghulam Mohy-Ud-Din, Kashem M. Muttaqi et al.

The resilience of an active distribution network (ADN) is continuously threatened by extreme weather, natural disaster, and cyber-physical incidents. An automatic restoration framework is thus desired to optimally integrate the emerging smart-grid technologies with the grid-edge flexibility to self-heal the ADNs. This paper proposes a framework for sequential ADN restoration by coordinating different distributed energy resources (DERs) on the grid-edge. The uncertainty of the renewable DERs is, however, a challenge. Therefore, the proposed framework is formulated as a chance-constrained optimization problem (CCOP). The chance-constraints use a parametrized response policy for the control during fluctuations and are reformulated for an efficient solution. The proposed CCOP's solution provides a sequence of control actions at each time-step that coordinates the network switches and DERs to form multiple islanded microgrids. Its effectiveness is evaluated on IEEE 123 node ADN. ....

Active Distribution Network Adn , Istributed Energy Resources Ders , Distribution System Operator Dso ,

"A Cooperative Planning Approach for Resilient Operation of Active Dist" by Ghulam Mohy-Ud-Din, Kashem M. Muttaqi et al.

The resilience of an active distribution network (ADN) is continuously threatened by extreme incidents. Cascading failures are the cause of most large-scale network outages in such events. Planning for resilient ADN operations under catastrophic emergencies is thus necessary for the distribution system operator. Fortunately, grid-edge flexibility can be a valuable tool in enabling resilience. This paper proposes a cooperative planning approach for the optimal partitioning and operation of ADNs with integrated VPPs in the form of multiple interconnected microgrids capable of successful islanded operation. On the grid edge, virtual power plants operate and control the distributed energy resources (DERs) and thus facilitate the ADN operation during emergencies. The uncertainty of the renewable DERs is, however, a challenge. Therefore, the proposed ADN partitioning model is formulated as a stochastic linear programming problem. Further, the operation model is based on the stochastic model ....

Active Distribution Network Adn , Distribution System Operator Dso , Virtual Power Plant Vpp ,