Predikce technických ztrát s ohledem na změny venkovní teploty u vedení přenosové soustavy

Abstract

The diploma work concerns a prediction of technical losses with regard to changes of outside temperature at transmission system of the Czech Republic. In the introduction, the high-voltage line and very high-voltage line analysis together with theory of electric energy losses is described. To specify a prediction of technical losses depending on changes of outside temperature, statistics method are used. The methods are mentioned in the basic theory of the diploma work too. Mathematical relations between losses and outside temperature changes are calculated from real measured values which were taken from the database of the long-distance energy control. On the basis of final results given by the prediction and measurements of electrical losses, a comparison between predicted and real values is done. The comparison results lead to a determination of appropriate dependences for a prediction of technical losses with regard to changes of outside temperature at all lines of the transmission system. In the conclusion of the diploma work, an evaluation of all achieved results and proposals for practical usage are summarised.