product description
There are two traction converter cabinets on each locomotive. The two hardwares are the same. The converters communicate with each other. The communication for the vehicle control unit is MVB. Each converter has 6 DCU drive control units, 2 It is a grid-side converter drive, three drive traction motors, and one drive auxiliary converter, through which the drive-level control of the complete vehicle is completed.
Traction converters are used to regulate the energy transfer of the grid, asynchronous traction motors and auxiliary loads. Each converter can generate two sets of three-phase variable voltage variable frequency power supply to drive two motors of the locomotive, wherein the converters 1, ii each generate a set of three-phase variable voltage variable frequency power supply, and the converter iii generates a set of constant voltage The fixed frequency power supply supplies power to the locomotive auxiliary system.
There are two traction converter cabinets on each locomotive. The two hardwares are the same. The converters communicate with each other. The communication for the vehicle control unit is MVB. Each converter has 6 DCU drive control units, and 2 are nets. The side converter drive, three drive traction motors, and one drive auxiliary converter, through which the vehicle drive stage control is completed.
Each traction converter cabinet is composed of two sets of grid-side converters. They use a set of pre-charging circuits to convert the AC voltage supplied by the secondary windings of the main transformer into a stable DC voltage, and the outputs are connected in parallel. On the same intermediate DC link.
