Pasko O. AC traction electric drive with smoothly variable structure for accumulator locomotive

Electropower processes in the traction electric drive of miner storage electric locomotives with IGB-transistor inverters and asynchronous engines. The purpose of dissertational work is increase of electric power profitability of the traction electric drive of an alternating current of miner storage electric locomotives. At the decision of the problemsput in dissertational work methods of many criteria of the analysis, the theory of electric circuits, a method of the harmonious analysis, a method of the approached decision of systems of the differential and algebraic equations were used at the analysis of electromagnetic processes by way of two components, methods of mathematical and physical modelling for research of operating modes of the traction electric drive on a computer. The theoretical development submitted in dissertational work have allowed: To apply in practice of creation of the traction electric drive a principle of the combined multilevel regulation of a voltage in system the independentinverter the pressure - traction asynchronous engine that has allowed to achieve expansion of a range of regulation of a voltage of the traction electric drive twice (1:30 instead of 1:15); To develop the circuit decision of the independent inverter of a voltage in the traction electric drive with changeable structure and algorithm of management of him; To introduce in practice of the theoretical analysis of electromagnetic processes approximation of a method of two making analyses of voltage and currents in system AIN-TAD; To create an industrial sample of the traction asynchronous IGB-transistor electric drive of a miner storage electric locomotive; To introduce results of researches in practice of creation of new type of a highly effective electric equipment for miner storage electric locomotives - AIN-TAD. Practical value of dissertational work proves to be true certificates of introduction of her results in a mountain - iron and steel industry by transfer of the scientific and technical documentation and results of research to the specialized organizations from release of an electric equipment for miner electric locomotives - Open Society " Electromachine " (Kharkov), GP NPK “ Elektrovozostroenie (Dnepropetrovsk) that has allowed to put in pawn a basis for creation of industrial samples of systems TEP of miner electric locomotives. Substantive provisions of dissertational work are used in educational process at lecturing on disciplines “ the Theory of the electric drive ”, “ Control systems of electric drives ”, “ Modelling in the electric drive ”, and also in a laboratory practical work, course and degree designing by students of specialities “ Electromechanical systems of automation and the electric drive ”, “ Electric transport ”.