- An Interconnected Power System Has Four Areas A B C And D The Area Demands Are Pa 400mw Pb 350mw Pc 550mw And P 1 (67.91 KiB) Viewed 38 times
= = An interconnected power system has four areas A, B, C and D. The Area demands are PA 400MW, PB 350MW, Pc 550MW and Pp= 450MW. All the interconnecting lines are capable to transfer any amount of power required in the areas. The composite input output characteristics of the generating units in the areas are: = = FA = 200 +2PA +0.005PX $/h, FB = 325 +3PB +0.003P} $/h, Fc = 275 +2.5Pc +0.0025P2 $/h, FD = 190 + 3.1Pp +0.0022P $/h. = = The generation limit in all the areas : 140MW <P; < 700MW. Assuming the areas operate in coordination to supply the total system load determine: (i) the cost of generation in each area and (ii) the total saving compared to the case when each area individually meets its loads without any area interchange.