Transmission Expansion Planning in Deregulated Power ... - tuprints

7 Stakeholders’ Desires 95
Table 7.2- Importance weights of stakeholders in decision making
Power Demand System Network
Stakeholders
Producers Customers Operator Owners Regulator
Weight of importance L H L M M
Table 7.3- Importance degrees of stakeholders’ desires from viewpoint of stakeholders
Network Environmental
Competition Reliability Flexibility Charge Impacts
Power Producers VI I PI PI U
Demand Customers VI VI I I U
System operator LI VI VI LI U
Network Owners U PI LI VI LI
Regulator. VI VI I I VI
7.4.1.2 Appropriateness Degrees of Expansion Plans Versus Stakeholders’ Desires
Suppose
k
C i for i=1, .., 5 is the criterion which is used for measuring competition (i=1),
reliability (i=2), operation flexibility (i=3), network charge (i=4), and environmental impacts
(i=5) of plan k. Smaller values of all these criteria indicate better conditions. Hence, inverse of
these criteria are used to measure the appropriateness degrees of expansion plans:
A = 1/
C for i=1, …, Nsd (7.1)
k
i
with:
k
i
k
A i appropriateness degree of plan k versus criterion i
Nsd number of stakeholders’ desires
For aggregating the appropriateness degrees of expansion plans versus different decision
criteria, the appropriateness degrees must be comparable versus different decision criteria.
Therefore,
k
A i is normalized on its maximum value over different expansion plans.
k k
k
N = A / max(
A ) for i=1, 2, …, Nsd (7.2)
with:
i
i
k
i
k
N i normalized appropriateness degree of plan k versus decision criterion i
7.4.1.3 Fuzzy Appropriateness Index
Let Xj∈X is the importance weight of stakeholder j in decision making and Yij is the
importance degree of desire i from the viewpoint of stakeholder j. The importance degree of
desire i from the viewpoint of transmission planners is equal to the weighted mean of Yij i.e.: