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Information × Registration Number 0224U001986, 0123U101818 , R & D reports Title Improvement of freight transportation with the participation of railway transport on the basis of logistics principles popup.stage_title Head Ohar Oleksandr M., д.т.н. Registration Date 03-02-2024 Organization Ukrainian State University of Railway Transport popup.description2  Improving the energy efficiency of charging station systems is achieved by a one-stage energy conversion using an active four-quadrant rectifier. The use of an additional DC/DC converter is unnecessary. Due to the fact that there is no additional link of energy conversion, the reduction of total power losses is achieved. Since the active rectifier is used in the mode of correction of the power factor, there is an improvement in the quality of electricity in the network. Due to the above, the efficiency improves and the emission of higher harmonics of currents and voltages to the mains and the load of the charging station is reduced. Modulation algorithms that increase the quality parameters of the output voltage and output current in active rectifiers are studied. The results of modeling in the form of energy characteristics and radiation indices of higher harmonics of current and voltage to the load and power supply network are obtained. Product Description popup.authors Afanasova Olha F. Hryhorova Yelyzaveta Yelyzaveta I. Kovalov Denys D. Kruhlova Natalia S. Kutsenko Maksym Yu. Lomotko Denys V. Lomotko Mykola D. Prymachenko Hanna O. Tarasov Kyrylo O. Tokarenko Anastasiya A. Shelekhan Ganna I. popup.nrat_date 2024-02-03 Close