Fault-tolerant design method for circuit system based on moment-independent importance

被引：0
|
作者：
Lu Z. [1 ]
Chen Y. [1 ]
Jin Y. [1 ]
He X. [2 ]
机构：
[1] School of Reliability and Systems Engineering, Beihang University, Beijing
[2] Shanghai Institute of Space Power-Sources, Shanghai
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2020年 / 46卷 / 02期
关键词：
Circuit analysis; Fault-tolerant design; Moment-independent importance; Regulator; Space power system;
D O I：
10.13700/j.bh.1001-5965.2019.0233
中图分类号：
学科分类号：
摘要：
Circuit failure is inevitable during operation and fault-tolerant design can significantly reduce the risk of failure. The traditional fault-tolerant method of circuit system is to analyze and improve the system mainly based on the designer's experience and cognition. However, it is usually difficult to determine accurately the important components that have significant impact on the system performance. Therefore, a fault-tolerant design method of circuit system based on importance analysis is proposed in this paper. Firstly, the definition and calculation method of moment-independent importance of circuit system are proposed to calculate and rank the moment-independent importance of components in the circuit system. Secondly, the quantitative relationship between redundancy coefficient and redundancy number is introduced, and the mapping rule of importance-redundancy coefficient is developed, based on which fault-tolerant design of circuit system can be optimized. Finally, a space power regulator is taken as an example to verify the effectiveness of the proposed method. The fault-tolerant design method of circuit system based on moment-independent importance presented in this paper is of great significance for improving the fault-tolerant ability of circuit system and improving the reliability of circuit system. © 2020, Editorial Board of JBUAA. All right reserved.
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页码：324 / 330
页数：6
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