Design of Distortion Parameters Test System for Aircraft Power System

The AC and DC voltage distortion of the aircraft power supply system will cause serious pollution, and seriously affect the aircraft safety performance. According to the requirement of the voltage distortion parameters test of the aircraft power system, the distortion test based on LabVIEW CVI is designed in this paper. The hardware and software of the test system is designed according to the requirements of GJG181 and GJB181A. The test system hardware adopts portable equipments and high-speed data acquisition and processing. The test system software adopts the modular design idea and program by using the software LabVIEW CVI. The hardware filtering and digital filtering are used in this system. The application shows that the distortion test system have reached the design requirements, and have the characters such as stable and reliable operation, convenient operation, simple maintenance and so on, and satisfied the needs of the distortion test for AC and DC aircraft power system.