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EE 340 Economic Dispatch Spring 2013

EE 340 Economic Dispatch - UNLVeebag/Economic Generator Dispatch.pdf · EE 340 Economic Dispatch Spring 2013. G1 G2 G3 System Incremental cost curves. 975 $9.163/MWh 9.16 9.16 9.16

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EE 340 Economic Dispatch

Spring 2013

G1 G2 G3

System

Incremental cost curves

975$9.163/MWh

9.16

9.16

9.16

975 = 450 + 315 + 210

483 MW

305 MW

187 MW

Upper limit violated:→ P1= 450 MW

→ solve the dispatch problem with two generators:P2 + P3 = 525 MW

→ λ = $9.4/MWh→ P2 = 315 MW→ P3 = 210 MW

lossPPPP

PP

PP

PP

=−++

+−

=

+−

=+−

150

),014.8.6)(000358.1

1(

)018.3.6)(000456.1

1()016.7()000436.1

1(

321

33

22

11

Results (obtained numerically):•P1 = 35.1 MW•P2 = 64.1 MW•P3 = 52.5 MW•Ploss = 1.7 MW•Pdemand = 150 MW