Big power converter of compact based on film capacitor

The utility model discloses a big power converter of compact based on film capacitor, fold mother, IGBT power device, output mother row, flexible drive circuit, high -speed photoelectric switching circuit and install film capacitor and the single face pressfitting formula radiator in power module bottom plate first and lower half respectively including the integration. The utility model discloses a with the power converter modularization, make standardized, large capacity product, shortened manufacturing cycle greatly, reduced power converter's volume, prolonged life, reduced the design degree of difficulty to can ensure the quality of products, improve the reliability. Simultaneously, take the energy storage film capacitor certainly, realize directly the transform that exchanges, the various combination of accessible module realizes multiple topological structure to make it produce different functions, if can realize three -phase contravariant function to more powerful output can be realized, the power trans