Because of society’s full dependence on electricity and
high cost of system outages, one important goal is to increase the
reliability of the power system, which means that a salient attractive
feature of smart grid is its self-healing ability. Smart grids will
develop and enhance the automation of distribution by operating
in a distributed manner through new digital technologies such as
monitoring, automatic control, two-way communication, and data
management. In thiswork, the smart grid concept and technologies
have been applied to construct a self-healing framework for use in
smart distribution systems. The proposed multiagent system is designed
to locate and isolate faults, then decide and implement the
switching operations to restore the out-of-service loads. The proposed
control structure has two layers: zone and feeder. The function
of zone agents in the first layer is monitoring, making simple
calculations, and implementing control actions. Feeder agents in
the second layer are assigned to negotiation. The constraints include
voltage limits, line current limits, and radial topology. Load
variation has been taken into consideration to avoid the need for
further reconfigurations during the restoration period. The results
of the simulation conducted using the new framework demonstrate
the effectiveness of the proposed control structure.