Authors
Danh Ngoc Nguyen, Laurence Dieulle, Antoine Grall,
Title
A deterioration model for feedback control systems with random environment
In
22nd Annual Conference on European Safety and Reliability, ESREL
Pages
1791–1798
Year
2014
Indexed by
Abstract
In this paper, we consider a PID (Proportional-Integral-Derivative) feedback control system operating under an uncertain environment that impacts the degradation of control-loop's components. An integrated model is proposed which jointly describes the state of the system and its degradation. By adopting a Piecewise Deterministic Markov Process, the RUL (Remaining Useful Life) can be computed by a two-step technique. First, the system state regarding the available observations is estimated on-line by usingthe Particle Filter method. Then, the reliability of the system is computed with a classical Monte Carlo method. To illustrate the approach, a well-known simulated water level control system is used.
Affiliations
Offprint