Kalashnikov K. Reduction of electricity losses in DC traction line by choosing a rational dislocation of traction loads

The dissertation is devoted to the solution of the important scientific and technical tasks - decreasing energy losses in traction line by choosing a rational dislocation traction loads. Based on the analysis of existing methods of reducing electricity losses in traction lines it's established that there are additional reserves of decreasing losses by choosing a rational dislocation of the traction loads, sequence of departure of trains with different categories, intervals between trains. It's formulated the principles of reducing electric power losses in traction lines based on the method of strain of the polytope, which allows to calculate the optimal distance between traction loads for building energy-efficient schedule of trains. The author proposed the principle of reduction of electricity losses in traction line on the basis of the heuristic algorithm for finding the minimum of the function list by selecting the optimal sequence of departure and intervals between trains. The sequence of trains with various categories is represented as a list, and each sequence of trains with different categories corresponds to a certain value of electricity losses in traction lines. It's developed a software package designed to compute energy-efficient train schedule. An experimental verification of theoretical propositions in dissertation using software complex "Potok" on the basis of simulation showed a positive economice effect.The net product value for electrified sections of Pridneprovskaya railway for 1 year is 1.4 million UAH.