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Economic distribution of electric loads in thermal power plants: Modeling and optimization

Polychronopoulos Anastasios

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Summary

In this thesis, a part of the problem of economic distribution of electrical load for the thermal power plants, is being solved. This problem appears, when two or more thermal plants are cooperated in order to cover the electrical demand of an area, since the issue that arises is how much energy should be produced by each plant. The aim of this thesis is to solve the economic distribution problem in such a way, that the electrical demand is covered with the minimum possible total cost of operating the plant. Initially, the operation of electricity systems is presented, along with concepts related to the study and prediction of electrical load. After that, there is a reference about thermal power plants, as well as to the input – output curves, in order to analyze the economic operation of plants. Additionally, the problem of economic load distribution is solved in both its simple and complex versions by considering constraints such as the functional limits of the units and energy losses due to transmission. Finally, the problem of power plant integration is solved, as part of the optimization of economic load distribution problem. For all these problems, MatLAB software was utilized, in which the corresponding files were developed.

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