I-type three-level conversion device

The invention provides an I-type three-level conversion device which comprises a circuit board and three-phase conversion units arranged on the circuit board, the direct current side of each phase conversion unit is connected with a direct current source, and the alternating current side of each phase conversion unit is connected with a three-phase alternating current source; a circuit board is divided into three types of areas according to dv/dt; and signal lines of devices such as a bus capacitor, a switch unit, a diode, an alternating current inductor and a filter capacitor are subjected to dynamic signal and static signal partition routing on a static area, a dynamic area and a dynamic and static combination area of a circuit board according to the type of transmitted signals, so that interlayer parasitic capacitance is reduced by optimizing the layout of a conversion circuit, and the reliability of the conversion circuit is improved. Electromagnetic radiation is optimized. 本发明提供了一种I型三电平变换装置，包括一电路板和设置在所述电