Robust residual generation for sensor fault isolation in systems with structured uncertainty: A case study: MIMO Web Winding System

This paper concerns with a problem of robust residuals generation on a system with structured uncertainty such that the designed signatures can be used to isolate sensor faults simultaneously. The proposed solution of this problem is executed by using a filter and a transformation matrix. The filter is used to generate the dynamic of system errors. Moreover the scheme consists of two stages. The first stage is to generate bases of each row of the transformation matrix so that they robust to structured uncertainty for each eigenvalue of the filter. The second stage is to construct row by row the transformation matrix based on the designed of signature vectors such that the modes of residual sensor fault can be decoupled one from the others. Moreover one dimensional of detection space is developed. To demonstrate the effectiveness of the method a simulation study on a MIMO Web Winding System which has multi input and multi output is carried out. The result shows that the method has been successfully implemented.