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Power System Operation and Control by N. V. Ramana

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2.5 ECONOMIC DISPATCH CONSIDERING LOSSES – THE CLASSICAL METHOD

For fast and effective solution of the economic dispatch problem the following method which uses the gradients is proposed.

Recall the Eqn.(2.23) of rth iteration as:

images

for i = 1, 2, …, ng

We have the equality constraint

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The rth iteration values of Pi obtained from Eq.(2.23) are substituted in the above equality constraint equation.

That is,

images

where PrL is the total loss of the system ...

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