An area of an interconnected power system has two fossil-fuel units operating on eco- nomic dispatch. The variable operating costs of these units are given by for 0 < P < 100 MW for P₁ > 100 MW C₁ = 4P₁ +0.02P S 8P₁ C₂ = 0.03Pr where P, and P₂ are in megawatts. Determine the power output of each unit, the in- cremental operating cost, and the total cost CT that minimizes Cy as the load demand Pr varies from 200 to 700 MW. Generating-unit inequalities and transmission losses are neglected. 4

An area of an interconnected power system has two fossil-fuel units operating on eco- nomic dispatch. The variable operating costs of these units are given by for 0 < P < 100 MW for P₁ > 100 MW C₁ = 4P₁ +0.02P S 8P₁ C₂ = 0.03Pr where P, and P₂ are in megawatts. Determine the power output of each unit, the in- cremental operating cost, and the total cost CT that minimizes Cy as the load demand Pr varies from 200 to 700 MW. Generating-unit inequalities and transmission losses are neglected. 4

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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