
Improvement of passenger car power supply
Author(s) -
В. В. Никитин,
B A Trifonov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2131/4/042086
Subject(s) - generator (circuit theory) , range (aeronautics) , limit (mathematics) , power (physics) , electrical engineering , automotive engineering , voltage , auxiliary power unit , axle , excitation , computer science , engineering , physics , mechanical engineering , mathematics , aerospace engineering , mathematical analysis , quantum mechanics
A significant part of the fleet of passenger cars in operation on Russian railways are equipped with an autonomous power supply system, in which the main source of energy is an undercar generator, which is rotated from the axle of a wheelset. The disadvantage of such a system is the limitation of the speed range in which it is possible to power consumers of electric power of a passenger car from the main source: as a rule, the lower limit of this range is 35 km/h. The article proposes a variant of a technical solution that will expand the speed range of using the undercar generator by lowering the lower limit to 25 km/h: it is proposed to provide self-excitation of the undercar generator through an inverting-type DC voltage pulse converter. The parameters of the elements of the pulse converter circuit and the possibility of expanding the boundaries of the high-speed range of operation of the EGV.08.1U1 undercar generator are estimated.