Research on Rough Set Applied to Satellite Power System Fault Diagnosis

Abstract

Abstract: Rough Set technique is introduced for increasing the diagnosis capability of multi- fault diagnosis algorithm when diagnosis knowledge is not mature.The reduction problem of decision table,which is one of Rough Set techniques,is researched.The reduced algorithm was given.The step and disadvantages of the diagnosis algorithm was discussed in detail.The Rough Set technique and the diagnosis algorithm were combined.The modified diagnosis algorithm was put forward.The technology was applied to fault diagnosis of a satellite power system.Real time diag- nosis can be proceed successfully while lack of symptom information is lack.It proved that the diag- nosis capability and efficiency was increased.

Key words: Fault Diagnosis, Rough set, Fault diagnosis, Power system, Satellite

An Ruoming~1 Gu Jihai~2 He Chuanyan~1 Jiang Xingwei~1 (1 School of Astronautics,Harbin Institute of Technology,Harbin 150001) (2 College of Mechanical-electronic Engineering,Harbin University of Commerce,Harbin 150028). Research on Rough Set Applied to Satellite Power System Fault Diagnosis[J]. .

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Research on Rough Set Applied to Satellite Power System Fault Diagnosis

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