Collaborative Fault Recovery and Network Reconstruction Method for Cyber-physical-systems Based on Double Layer Optimization

For fault characteristics of cyber-physical-systems (CPS) based distribution network, a spatiotemporal incidence matrix to represent correlation of concurrent faults on cyberspace and physical space is proposed, and strategies of fault location, removal, and recovery of concurrent faults are analyzed in this paper. Considering the multiple objectives of minimum network loss, voltage deviation, and switching operation times, a collaborative power supply restoration model of a CPS-based distribution network with the strategy that restoration of the communication layer is prior to the physical layer is constructed using the Dijkstra's dynamic routing algorithm and second-order cone relaxation distribution network reconfiguration method, to realize orderly recovery of a distribution network during CPS concurrent faults. Related investigations are made based on the DCPS-160 case, and the accuracy and effectiveness of the proposed model are also verified.