The invention discloses a large-capacity
inverter module with high-current / high-
voltage IGBTs directly connected in parallel. The large-capacity
inverter module comprises a water-cooled plate, discrete IGBT devices, a laminated
busbar, a first absorbing
capacitor, a driving loop, an AC side convergence
busbar, a
current sensor, a DC side laminated
busbar, a second absorbing
capacitor, a DC side negative convergence busbar and a DC side positive convergence busbar, wherein the number of the discrete IGBT devices is six, and the six discrete IGBT devices are sequentially and evenly arranged on the
water cooling plate from top to bottom. The large-capacity
inverter module with the high-current / high-
voltage IGBTs directly connected in parallel have the advantages that the calculation of current impedance of the
branch circuits connected in parallel is precise, the consistency is guaranteed, a
high current sharing coefficient is realized, the cable lengths of the devices of different phasesof the driving loop are identical, and the paths are separated and do not interfere with one another; and the large-capacity inverter module adopts a main loop
layout design, makes full use of space,optimizes circuit paths, is high in
power density, has small overall module size, is simple, is convenient to maintain and install, and has good electrical properties.