Transmission Expansion Planning in Deregulated Power ... - tuprints

tuprints.ulb.tu.darmstadt.de

Transmission Expansion Planning in Deregulated Power ... - tuprints

5 Market Based Transmission Expansion Planning 58

Table 5.4- Characteristics of loads of IEEE 30 bus test system

Bus No. Min (MW) PDF of Load (MW) Bid ($/MWhr) Unavailability

3 0 N~(160, 12) 15 0.05

5 0 N~(85, 7.5) 14 0.05

7 0 N~(50, 5) 15 0.05

8 0 N~(25, 2) 17 0.05

10 0 N~(190, 15) 20 0.05

12 0 N~(50, 4) 18 0.05

13 0 N~(20, 2) 19 0.05

14 0 N~(50, 4.5) 17 0.05

15 0 N~(50, 5) 16 0.05

16 0 N~(9, 0.5) 20 0.05

8 0 N~(35, 2) 21 0.05

19 0 N~(17, 0.5) 23 0.05

20 0 N~(60, 4.5) 17 0.05

21 0 N~(34, 2.5) 19 0.05

23 0 N~(85, 7.5) 22 0.05

24 0 N~(9, 0.6) 25 0.05

25 0 N~(9, 0.2) 25 0.05

27 0 N~(27, 2) 23 0.05

29 0 N~(35, 2.5) 24 0.05

continued till reach a zero congestion cost network, we will also have a flat price profile. Vice

versa, if standard deviation of mean of LMP (or weighted standard deviation of mean of

LMP) is used as planning criterion and it is tried to reduce standard deviation of mean of LMP

by expansion planning, other criteria will reduce and after achieving a flat price profile we

will also have zero congestion cost (see (4.2)). Planning criteria propose different paths

(expansion plans) to achieve flat price profile or zero congestion cost. To determine the

impacts of reduction of one criterion on the other criteria, and to determine which criterion

leads to zero congestion cost and flat price profile at minimum cost or at minimum number of

expansion plans, transmission expansion planning is performed eight times (stages) under

different criteria. For each criterion, after determining the minimax regret plan, it is added to

the network and the approach is repeated. At the first stage of planning between each two

buses which have average LMP difference greater than SV=$5/MWhr a new line is suggested

as transmission candidate. As new lines are added to the network, price profile becomes

flatter. Therefore, number of candidates for the next planning stages decreases. In the stages

that suggested candidates do not improve the selected criterion or in the stages that only a few

candidates are suggested, SV is decreased to have reasonable number of candidates. To

determine the effects of non-random uncertainties on the performance of market based criteria

expansion planning is performed under two different assumptions: There is not any nonrandom

uncertainty, and there is non-random uncertainty.

More magazines by this user
Similar magazines