Economic Load Dispatch In Power System Without Considering Losses Using Direct Method

ECONOMIC LOAD DISPATCH IN POWER SYSTEM WITHOUT CONSIDERING LOSSES USING DIRECT METHOD 

PROGRAM:

clc;

clear all;

warning off;

a=[.001562;.00194;.00482];

b=[7.92;7.85;7.97];

c=[561;310;78];

pd=850;

pgmin=[150;100;50];

pgmax=[600;400;200];

noofunits=length(a);

delp=10;

lambda=(pd+sum(b./(2*a)))/sum(ones(length(a),1)./(2*a));

lambda;

p=(lambda-b)./(2*a);

for i=1:noofunits

if p(i)>pgmax(i)

if lambda>((2*a(i)*pgmax(i))+b(i))

p(i)=pgmax(i);

end

else if p(i)<pgmin(i)

if lambda<((2*a(i)*pgmax(i))+b(i))

p(i)=pgmin(i);

end

end

end

end

p