UNINTERRUPTIBLE POWER SUPPLY SYSTEM FOR CARS Russian patent published in 2021 - IPC H02J3/04 B60L1/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering for uninterrupted power supply of high-speed electric train cars. The system contains in series: a power filter, an autonomous voltage inverter, a step-down transformer, a rectifier, a separating diode and direct current bus bars, to which switchgears are connected, a set of cars and a set of contactless direct current motors, on the shaft of each of which there is a synchronous generator of three-phase sinusoidal current. In addition, a storage battery with a separating diode is inserted into the device, connected to the direct current buses. In the presence of voltage on the contact network, the consumers of the cars receive electrical energy from the direct current network and from synchronous generators with permanent magnets, and the voltage of this network is 1…1.5 V higher than the battery voltage and it is not discharged. When the voltage on the contact network disappears, the battery voltage is applied to the direct current network, and the transition is carried out in a fraction of a second.

EFFECT: ensures the possibility of power supply of car consumers only from the direct current contact network.

1 cl, 1 dwg