Fault detection and isolation : application to pipeline systems

• Main Author: Wan Abdul Aziz, Wan Mohd Yusof Rahiman
• Published: University of Manchester 2009
• Subjects: 621.8672
• Online Access: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498676

In this thesis, the development on Fault Detection and Isolation (FDI) and its application on the nonlinear pipeline based on an observer design techniques are presented. The main focus is to perform the analysis on pipeline systems characteristics and then, systematic approaches are designed for leak diagnosis system based on transient response. In order to monitor the transient response,three different types of observer designs are introduced in this work together with different aspects of leakage are discussed. Each of the presented observer design methods significantly reduce the required time for leak detection and location. A model is developed on the basis of motion and continuity equations for the single pipeline systems. These equations are derived from fluid transient flow through a cylindrical pipe. The systems are, then, measured by transient flow and pressure measuring devices at two signals point in the beginning and the end of pipeline. The research, devoted primarily to continuous monitoring of the flowrate and pressure that are performed along the pipeline systems. The steady-state analysis technique is verified using simulation via FDI procedure. Presented methods are derived using knowledge from different research fields such as mathematical modelling, systematic inspection and monitoring techhniques. The structure of this thesis is set out in a systematic way so that each of the derived techniques is presented in an individual chapter, which can be read separately.