A universalized, integrated and modularized IGBT traction converter module
A traction converter, a modular technology, is applied in the traction of DC motors, the conversion of AC power input into DC power output, and the conversion equipment with reversible, which can solve the difficulty of power increase, inconvenient installation and maintenance, and integration To solve the problem of low degree of integration, it can achieve the effect of optional cooling method, convenient installation and maintenance, and high degree of integration
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[0020] Such as Figure 1-4 As shown, it includes a converter unit 10, a DC support capacitor unit 20, a gate drive circuit 30 and a control box 40 installed in a drawer structure, wherein:
[0021] The converter unit 10 is installed on one side of the drawer structure, which includes IGBT components, radiators and low-inductance busbars; the IGBT components are arranged on the radiator according to the shape of the radiator and the uniform distribution of heat on the cooling surface, The low-sensitivity busbar is installed on the main terminal of the IGBT component through the combination screw, and the radiator is exposed outside the installation cabinet;
[0022] The DC support capacitor unit 20 is a low-inductance capacitor, and two identical capacitors are connected in parallel inside, and its four poles are respectively drawn out by four screws; The flow unit 10 is connected and installed on the support frame in the middle of the drawer structure through the mounting hol...
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