The 400Hz medium-frequency static power supply, with its multiple advanced technologies and outstanding performance, provides reliable support for various power application scenarios. It is widely used in high-performance equipment such as aircraft, aviation communication devices, and spacecraft. With the rapid development of the aviation industry, the demand for 400Hz aviation medium-frequency static power supplies and aircraft medium-frequency static power supplies will continue to increase. The power supply industry will also continue to advance toward higher efficiency, greater stability, and improved reliability.

It employs AC parallel redundancy technology, three-phase independent regulation inverter technology, and frequency-doubling inverter technology. Among these, AC parallel redundancy technology allows two or more inverter power supplies to output in parallel, enhancing system reliability. If one unit fails, it will not affect the normal power supply to the load. Advanced current-sharing technology ensures that each inverter power supply evenly shares the load current, expanding power capacity, reducing operating costs, and extending the service life of the power supply. The three-phase independent regulation inverter technology enables the equipment to operate normally under unbalanced loads.

The use of frequency-doubling inverter technology allows high-power IGBTs to operate at lower switching frequencies, significantly reducing heat generation and improving reliability. At the same time, compared to same-frequency inverter circuits with equivalent switching losses, the parameters of the filter are reduced by four times, resulting in a much smaller filter size, faster dynamic response speed, higher output stability, and greater output precision.