phm system architecture of aircraft secondary power distribution system

Abstract

The invention discloses a PHM system architecture of an aircraft secondary power distribution system. The PHM architecture adopts a layered structure, from the bottom up to the physical layer, the perception layer, the analysis layer, to the local fault diagnosis layer, the system fault diagnosis layer, and the system fault diagnosis layer. The failure prediction layer, and finally the system health management layer describes the overall structure of the PHM system, so as to integrate the PHM technology on the basis of the original aircraft secondary power distribution system, realize the goal of the PHM system of the secondary power distribution system, and then promote domestic civil aircraft The development and application of PHM technology in the power supply and distribution system can improve the safety, reliability, maintainability, support and economy of the entire aircraft power supply system.

Description

technical field

[0001] The invention relates to a PHM system framework and a method of an aircraft secondary power distribution system, belonging to the technical field of power electronics and electric engineering. Background technique

[0002] In order to improve aircraft safety and reliability and promote the development of condition-based maintenance, aircraft PHM (failure prediction and health management) technology has been developed and applied. For example, the Boeing B777, B787 health management system (AHM) and the maintenance analysis system (AIRMAN) of all Airbus A3xx aircraft, which can monitor the key parameters of the aircraft in real time, record the operation data, diagnose and predict faults at the aircraft level, and generate and manage maintenance plans Wait. However, various types of aircraft-level PHM architecture systems that have gained more practical applications focus on engine, airframe and material structure performance, flight control and avioni...

Images