LAMINATION BUSBAR OF VOLTAGE SOURCE-TYPE CONVERTOR UNIT SUITABLE FOR IGBT

摘要

A lamination busbar of a voltage source-type convertor unit suitable for an IGBT. The lamination busbar comprises a compound insulation busbar, and a U-shaped short-circuit busbar adapted to the compound insulation busbar, wherein two electrodes of the U-shaped short-circuit busbar are respectively connected to a corresponding end of one IGBT so as to realize the short circuit of two IGBTs. Two ends of the compound insulation busbar are respectively connected to corresponding ends of a capacitor terminal and the IGBT. The installation of the U-shaped short circuit busbar is more convenient, so that not only a bolt connection process is minimized, but also the distributed inductance of the busbar is reduced. Combined with the compound insulation busbar, the distributed inductance in a loop is further reduced.