The invention discloses a subway permanent
magnet traction inversion
chopper power module composite
busbar, which is used to solve problems of conventional composite busbars such as
heavy weight, complicated structure, and inconvenient installation. An inversion output
busbar is formed by fixedly arranging three right angle-shaped
copper bar bodies, and the upper end of every
copper bar body is provided with an inversion output terminal. A
chopper resistance
busbar is formed by a right angle-shaped
copper bar body, and the upper end of the
chopper resistance busbar is provided with a chopper output terminal. An inversion
direct current busbar and a chopper
direct current busbar are respectively provided with a screwed sleeve, and a supporting
capacitance busbar and an inversion
direct current busbar are in a vertical arrangement, and in addition, one end of the supporting
capacitance busbar is provided with a bolt connecting board cooperated with the screwed sleeves. The other end of the supporting
capacitance busbar is provided with two direct current
bus positive pole terminals and a direct current
bus negative pole terminal. The subway permanent
magnet traction inversion chopper
power module composite busbar is advantageous in that the weight of the composite busbar is integratedly reduced,
inductance of a circuit is reduced, and working reliability of an IGBT is improved.