Moulding board type static power converter for aviation

The utility model discloses a moulding board type static power converter for aviation including a backing stage direct current converter connecting to a next cascade inverter. The utility model is characterized in that the backing stage direct current converter is the direct current power supply modular construction which is composed of four completely independent and isolated direct current converters, the next cascade inverter comprises a power circuit, a control circuit and an output filter circuit. Wherein, the inverter power circuit is connected into a tandem type structure by four single phase inverters, each single phase inverter is formed into an inversion bridge type circuit by four power switch tubes. The control circuit comprises a voltage electric current bicyclo control circuit and a four-way inversion signal generator. The voltage ripple outputting from each inversion bridge is two times as big as the frequency of the power switch tubes, the voltage ripple frequency outputting from four inversion bridges is eight times as big as the frequency of the power switch tubes, the feedback signal of a double closed-loop control circuit takes from the voltage and the electric current of a filtration capacitance. Compared with prior art, the static power converter has the advantages of high circuit modularity degree, low voltage stress of interior heat-source distribution and power device, high efficiency, reliable operation, hard external characteristic, favorable load characteristic, strong non-linear load capacity and simply control.