리그시스템을 활용한 항공기 모드별 전원설계 검증에 관한 연구

Abstract

Rig test that test the performance of mechanical and electrical devices are applied to shorten the aircraft development period, reduce costs, and ensure quality. This study proposed a method of verifying the power design using rig test to develop an aircraft electrical system. The power design is divided into four modes : normal mode in which power is supplied under normal interfaces with all components, abnormal mode in which power is normally supplied to all power buses from another normally operating component if one component fails, emergency mode in which battery power is supplied to the essential power bus for flight safety if all generators fail, fault isolation and reset mode for fault isolation in case of overloading of components. To verify the power design for each operating mode, it was verified through rig test that the aircraft power requirements specified in MIL-STD-704F, the military standard of the Ministry of National Defense applied during aircraft system development. The rig system was constructed by electrical system components such as power supply, power distribution, power conversion, battery, and various test devices such as DC/AC loaders. By identifying test items for each operation mode and conducting comprehensive system interface tests, it was possible to verify whether the power requirements were met under normal, abnormal, and emergency operating conditions and the interface stability between components through fault isolation and reset tests.