Volkivs'kyy V. Semiconductor converters with increased charging efficiency of accumulators by pulse asymmetric currents

Object of investigation: semiconductor converters charging efficiency of accumulators by pulse asymmetric currents. Aim: development of energy saving charging methods of accumulators by pulse asymmetric currents, circuits of semiconductor converters with increased charging efficiency and methods of adaptive control of these converters. Methods: mathematical and physical simulation, methods of computational mathematics, circuit theory, solution methods of differential equalizations, mathematical methods of estimation of the conducted researches. Principal results: circuit model of accumulator, which takes into account polarization component of the complete internal resistance, has been designed by using of electrode processes research and this model allows to compute a transient processes when charge and discharge current pulses are operating. New method of energy using of a discharge pulse current, when accumulators charging by pulse asymmetric currents, allows to increase energy efficiency of chargers. The adaptive method of charging, which by change of duration charge and discharge pulses depending on a condition of the accumulator, allows to reduce a charging time significantly has been offered.