B 400 MW 80 MW 40 MW C D Figure P6.5 Three-bus power system for Problems 6.5 to 6.9 and 6.12 to 6.17 Generator Capacity (MW) Marginal cost (S/MWh) A 150 12 B 200 15 150 10 400 8 6.6 The table below gives the branch data for the three-bus power system of Prob- lem 6.5. Using the superposition principle, calculate the flow that would result if the generating units were dispatched as calculated in Problem 6.5. Identify all the violations of security constraints. Branch Reactance Capacity (p.u.) (MW) 1-2 0.2 250 1-3 0.3 250 2-3 0.3 250 6.7 Determine two ways of removing the constraint violations that you identified in Problem 6.6 by redispatching generating units. Which redispatch is preferable? 6.8 Calculate the nodal prices for the three-bus power system of Problems 6.5 and 6.6 when the generating units have been optimally redispatched to relieve the constraint violations identified in Problem 6.7. Calculate the merchandising sur- plus and show that it is equal to the sum of the surpluses of each line.
B 400 MW 80 MW 40 MW C D Figure P6.5 Three-bus power system for Problems 6.5 to 6.9 and 6.12 to 6.17 Generator Capacity (MW) Marginal cost (S/MWh) A 150 12 B 200 15 150 10 400 8 6.6 The table below gives the branch data for the three-bus power system of Prob- lem 6.5. Using the superposition principle, calculate the flow that would result if the generating units were dispatched as calculated in Problem 6.5. Identify all the violations of security constraints. Branch Reactance Capacity (p.u.) (MW) 1-2 0.2 250 1-3 0.3 250 2-3 0.3 250 6.7 Determine two ways of removing the constraint violations that you identified in Problem 6.6 by redispatching generating units. Which redispatch is preferable? 6.8 Calculate the nodal prices for the three-bus power system of Problems 6.5 and 6.6 when the generating units have been optimally redispatched to relieve the constraint violations identified in Problem 6.7. Calculate the merchandising sur- plus and show that it is equal to the sum of the surpluses of each line.
Micro Economics For Today
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Author:Tucker, Irvin B.
Publisher:Tucker, Irvin B.
Chapter7: Proudction Costs
Section: Chapter Questions
Problem 8SQP
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I only need help with 6.8
Transcribed Image Text:B
400 MW
80 MW
40 MW
C D
Figure P6.5 Three-bus power system for Problems 6.5 to 6.9 and 6.12 to 6.17
Generator
Capacity
(MW)
Marginal cost
(S/MWh)
A
150
12
B
200
15
150
10
400
8
6.6 The table below gives the branch data for the three-bus power system of Prob-
lem 6.5. Using the superposition principle, calculate the flow that would result
if the generating units were dispatched as calculated in Problem 6.5. Identify
all the violations of security constraints.
Branch
Reactance
Capacity
(p.u.)
(MW)
1-2
0.2
250
1-3
0.3
250
2-3
0.3
250
6.7 Determine two ways of removing the constraint violations that you identified in
Problem 6.6 by redispatching generating units. Which redispatch is preferable?
6.8 Calculate the nodal prices for the three-bus power system of Problems 6.5 and
6.6 when the generating units have been optimally redispatched to relieve the
constraint violations identified in Problem 6.7. Calculate the merchandising sur-
plus and show that it is equal to the sum of the surpluses of each line.
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