Melnik O. A hauling electromechanic of direct-current is with enhanceable electroenergy efficiency for mine contact electric locomotives

Dissertation is devoted the increase of electroenergy efficiency and reliability of hauling electromechanics of direct-current of mine contact electric locomotives. Approach is in-process grounded and the criteria of estimation of efficiency of perspective hauling electromechanics of mine contact electric locomotives are developed. It is set that at the impulsive feed of loss electroenergy in hauling electric engines at the middle rates of movement of mine contact electric locomotives increase in 2...3 time by comparison to losses on a direct current, that creates the impermissible overheat of engines at the simultaneous worsening of terms of their commutation. General use of the impulsive adjusting which is recommended, at frequencies of commutation of transformer 500-1000 Hertzs, and by-passing of puttees of excitation of TED. General use of the impulsive adjusting which is recommended, at frequencies of commutation of transformer 500-1000 Hertzs, and by-passing of puttees of excitation of TED lets to attain the decline of additional losses a resistor in the hauling engines of mine electric locomotives on the average 4...7 times. Formalizovany and certain frequency descriptions of the developed structures of the combined filters, which let to estimate their efficiency, choose and ground a perspective variant. Dependence is well-proven between the parameters of the offered chart of filter and parasite currents with determination of rational correlations first for limitations of the second. A conduct is investigational and, on the basis of computer researches of the system: IGBT- transformer - TED is a filter, got transitional descriptions