Abstract
Two strategies arc developed for optimizing the operation and tariff negotiation of a cogeneration plant in association with electricity purchase under a maximum demand tariff. A mathematical model of the major plant items is used to make decisions on the choice of the amount of local generation under varying load conditions and hence the maximum demand for purchased power and, optionally, the size of installed generating capacity. The choices are based on the opportunity costs for the different sources of energy under varying conditions. Of four different approaches tried, two have proved effective. They are a heuristic method specific to this problem and an application of linear programming following a monotonicity analysis. Each has advantages when applied to a certain class of problems.
Published Version
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