During every restoration step, various security checking
programs like switching overvoltage checking need to be implemented.
Initially restoration duration is used as the weight of
edges. If the restoration schemes cannot satisfy the security
demand, the weight should be defined as reactive charging power
of transmission lines. In such a case, the weights of substations are
defined as zero. If the restoration schemes are still not qualified,
they should be adjusted according to experience of experts. After
the adjustment, the unqualified restoration schemes are discarded
and the qualified reserved. And the process is repeated until all
possible restoration paths are acquired according to all possible
restoration goals.
After the candidate restoration schemes are obtained, MADM
and group decision-making theories will be implemented to evaluate
and rank these alternatives