Abstract

Fault-tolerant control, and fault detection and identification take into account, at the early design stage, unexpected system failures. For this reason, the ability of a sensor system to tolerate a fault must be taken from designing. This paper deals with the problem of fault tolerant sensor placement in wind turbine systems. A wind turbine sensor system analysis for fault tolerance capacity based on residual structure analysis is proposed to provide a fault tolerant architecture. The proposed approach is based on diagnosability properties in case of sensor loss situations; it evaluates the capacity of the wind turbine system to be fault tolerant. A graph representation is used to study diagnosability, and evaluate fault tolerance capacity in different cases of sensors distribution.

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