The 400Hz intermediate frequency static inverter power supply is a high-frequency, highly efficient, stable, safe, and reliable power equipment, widely used in high-performance devices such as aircraft, aviation communication equipment, and spacecraft. With the rapid development of the aviation field, the demand for 400Hz intermediate frequency static inverter power supplies and aircraft intermediate frequency static inverter power supplies will continue to increase. The power supply industry will also continue to develop towards higher efficiency, greater stability, and improved reliability.

Application Technologies

1. AC Parallel Redundancy Technology: Independently developed AC parallel redundancy technology enables two or more inverter power supplies to output in parallel, improving system reliability. If one unit fails, it does not affect the normal power supply to the load. Current sharing technology ensures that each inverter power supply equally shares the load current, expands battery capacity, reduces operating costs, and extends battery life.

2. Three-Phase Independent Regulation Inverter Technology: This technology utilizes three single-phase bridges for conversion separately, then combines the outputs with a 120-degree phase difference. The three single-phase inverters operate independently, so the three-phase outputs do not interfere with each other and can handle unbalanced loads.

3. Frequency Doubling Inverter Technology: By adopting frequency doubling inverter technology, high-power IGBTs operate at lower switching frequencies, significantly reducing heat generation and improving reliability. 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, and thus quicker load response speed, higher output stability, and greater output precision.