基于余度和容错技术的高可靠机载智能配电系统设计

doi:CNKI:11-1929/V.20110526.1756.019

Abstract

Abstract: An intelligent airborne power distribution system for large-scale unmanned aerial vehicles (UAVs) is presented to deal with the excessive avionics bus resource occupancy and low reliability of traditional power distribution systems in keeping with the development of aircraft electric technology and the electrical system characteristics of UAVs. In order to realize the optimal allocation of intelligent airborne power distribution system redundancy structure, the approach establishes a Markov model to analyze the impact of different redundancy power supply processors (PSPs) and electrical load management centers (ELMCs) on system reliability. At the same time, a mutual monitoring approach between the PSP and the ELMC is put forward to solve the fault monitoring problem for the dual redundant system. On this basis, a prototype is developed with a high speed digital signal processor (DSP), huge field-programmable gate arrays (FPGAs) and real-time software. Theoretical analysis and experimental results demonstrate that the designed airborne power distribution system has the characteristics of high reliability, fault tolerance and intelligence.

Key words: large-scale UAV, power distribution system, power supply processor, electrical load management center, Markov process, redundancy

CLC Number:

V242
TP273

XU Jinquan, GUO Hong, ZHANG Qinling, QIAN Hao. Design of Intelligent Airborne Power Distribution Systems with High Reliability Based on Redundancy and Fault-tolerant Technology[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(11): 2117-2123.

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Design of Intelligent Airborne Power Distribution Systems with High Reliability Based on Redundancy and Fault-tolerant Technology

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