September 2010
Intermediate to advanced
200 pages
3h 36m
English
Content preview from Power System Operation and Control
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2.2 ECONOMIC SCHEDULING PROBLEM CONSIDERING LOSSES
The economic dispatch problem is defined as that which minimizes the overall operating cost of all generators, CT, of a power system while meeting the total load, PD, plus transmission losses, PL. Mathematically by the problem is defined as follows:
Where,
αi, βi, γi are the cost coefficients
Pi = real power generation by ith generating unit (for i = 1, 2, …,).
ng = Total number of generating units in power system.
Subject to the equality constraint the energy balance equation given as:
Where ...
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