Given two thermal generating units with the following polynomial cost functions: Coal Fired: F1(P) = 50 + 2P + 0.02P?$/h; 40MW «P « 200MW Gas Fired: (F2(P2) = 50 + P2 + 0.04P$/h; 60MW « P2 « 250MW \) %3D In an economic dispatch, If the load is reduced to 180 MW, which case is cheaper? Select one: O a. Unit 1 is OFF, and P2 = 180 MW O b. P1 = 111.67 MW , P2 = 68.33 MW. C. P1 = 180 MW, and unit 2 is OFF. O d. None of these O e. P, = 120 Mw, P2 = 60 MW. O f. P; = 114 MW, P2 = 66 MW.

Given two thermal generating units with the following polynomial cost functions: Coal Fired: F1(P) = 50 + 2P + 0.02P?$/h; 40MW «P « 200MW Gas Fired: (F2(P2) = 50 + P2 + 0.04P$/h; 60MW « P2 « 250MW \) %3D In an economic dispatch, If the load is reduced to 180 MW, which case is cheaper? Select one: O a. Unit 1 is OFF, and P2 = 180 MW O b. P1 = 111.67 MW , P2 = 68.33 MW. C. P1 = 180 MW, and unit 2 is OFF. O d. None of these O e. P, = 120 Mw, P2 = 60 MW. O f. P; = 114 MW, P2 = 66 MW.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.31P: Consider two interconnected voltage sources connected by a line of impedance Z=jX, as shown in...

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