According to the different types and characteristics of satellite fault,a kind of fault diagnosis method is proposed,which integrates multivariate threshold,model-based and fault tree-based method.In order to optimize...According to the different types and characteristics of satellite fault,a kind of fault diagnosis method is proposed,which integrates multivariate threshold,model-based and fault tree-based method.In order to optimize the fault diagnosis method,it takes the advantages and remedy of a defect with other methods.This can diagnose many kinds of satellite fault occurring in the on-orbit phase rapidly and accurately.Besides,it can analyze the damage degree of the failure and establish the measures to eliminate the failure.展开更多
This paper puts forward a new fault diagnosis model based on Petri net.In this new fault diagnosis method,an associated tree is f irst defi ned to describe the logic according to the protections and circuit breakers.A...This paper puts forward a new fault diagnosis model based on Petri net.In this new fault diagnosis method,an associated tree is f irst defi ned to describe the logic according to the protections and circuit breakers.After that a Petri net diagnosis model comes into being and the precise diagnosis of power grid elements can be realized at the same time.The simulation results given in this paper illustrate that this fault diagnosis method can make a rapid diagnosis in complex fault situation and give accurate results to power grid fault diagnosis.展开更多
文摘According to the different types and characteristics of satellite fault,a kind of fault diagnosis method is proposed,which integrates multivariate threshold,model-based and fault tree-based method.In order to optimize the fault diagnosis method,it takes the advantages and remedy of a defect with other methods.This can diagnose many kinds of satellite fault occurring in the on-orbit phase rapidly and accurately.Besides,it can analyze the damage degree of the failure and establish the measures to eliminate the failure.
文摘This paper puts forward a new fault diagnosis model based on Petri net.In this new fault diagnosis method,an associated tree is f irst defi ned to describe the logic according to the protections and circuit breakers.After that a Petri net diagnosis model comes into being and the precise diagnosis of power grid elements can be realized at the same time.The simulation results given in this paper illustrate that this fault diagnosis method can make a rapid diagnosis in complex fault situation and give accurate results to power grid fault diagnosis.
