Flatness for Actuators Monitoring: Application in Process Engineering Domain

Process engineering systems encountered in many risky industries (nuclear, chemical...) are complex because of their multidomain energy character. Actuators are the main elements for their control design. They need for their safety a monitoring system. The monitorability model based analysis (ability to detect and to isolate an actuator fault) is based on the structured residual analysis using analytical redundancy or covering causal path based on bond graph methodology. The present paper proposes a new approach based on flatness topology for actuator monitorability analysis. The developed approach is illustrated by a thermofluid application (a non-linear multienergy system). Copyright © 2005 IFAC