A new method of network reconfiguration for service restoration in shipboard power systems

The electric power systems of ships supply energy to sophisticated systems for weapons, communications, navigation and operation. Circuit breakers (CBs) and fuses are provided at different locations in order to remove faulted loads, generators or distribution systems from unfaulted portions of the system. These faults could be due to material causalities of individual loads or cables or due to widespread system fault due to battle damage. Because of the faults and after isolating the fault, there are unfaulted sections which are left without supply. It is required to quickly restore supply to these unfaulted sections of the shipboard power systems. This paper presents a new method to reconfigure the network to restore service to unfaulted sections of the system. The problem is formulated as a modification of the fixed charge network flow problem. The proposed method is illustrated using different case studies.