The determination of restoration schemes consists of two parts:
(1) determination of restoration goals and (2) path searching
method. These two parts are described in the following two subsections
respectively.
Three-stage restoration strategy
After a blackout, the whole system should be sectionalized into
several subsystems to accelerate restoration process. The sectionalization
is based on the distribution of black-start units, technical
properties of units, network structure and management scope
of regional power supply companies. Each subsystem should contain
at least one black-start unit, one unit to be restarted, one
feasible restoration path and one reliable synchronization point
with other subsystems. And each subsystem should have adequate
measures and ca