FIELD: transportation.
SUBSTANCE: group of inventions relates to electrical traction systems of vehicles. Traction power supply system for a high-speed train comprises an on-board power supply device, which comprises an onboard power supply circuit of the drive and auxiliary power supply, as well as an onboard circuit of energy and discharge accumulation. Double-sided single-phase electric circuits α and β of traction power supply network are connected to on-board power supply device by means of two-phase pantographs T1 and T2. At that, when one of the pantographs is lifted, the other one should be lowered, or both pantographs may be lowered. Electric circuit α is always connected to onboard power supply circuit of drive and auxiliary power supply, electric circuit β is always connected to the onboard circuit of energy and discharge accumulation, and onboard power supply circuit of the drive and auxiliary power supply and onboard accumulation circuit are independent and isolated from each other. Also claimed is high-speed train, which comprises said traction power supply system.
EFFECT: technical result consists in ensuring null propagation of negative sequence current and in possibility of train movement without external power supply.
12 cl, 12 dwg
