Exploració per autor "Olaru, Sorin"

Ara es mostren els items 1-20 de 20

    • A comparison of modelling approaches for closed-loop decision making over discrete domains in manufacturing systems 

      Diaz Castañeda, Jenny Lorena; Olaru, Sorin; Ocampo-Martínez, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      The manufacturing industry is transforming towards smart, flexible, and energy-efficient systems. In this regard, control strategies based on optimisation have been proposed to improve the energy efficiency of manufacturing ...

    • Actuator-fault detection and isolation based on interval observers and invariant sets 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper proposes an interval observer-based actuator fault detection and isolation (FDI) approach. An interval observer matching the healthy system mode is designed to monitor the system. When the system is in different ...

    • Actuator-fault detection and isolation based on set-theoretic approaches 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (2014-06-01)
      Article
      Accés obert
      In this paper, an actuator-fault detection and isolation (FDI) approach is proposed. The FDI approach is based on a bank of interval observers, each of which is designed to match a healthy or faulty system mode. To ensure ...

    • Closed-loop actuator-fault detection and isolation using invariant set and tubes 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper proposes a new actuator-fault detection and isolation (FDI) strategy for closed-loop discrete time-invariant systems by using invariant sets and tubes. In this approach, invariant sets are used for fault detection ...

    • Closed-loop actuator-fault detection and isolation using invariant sets and tubes 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper proposes a new actuator-fault detection and isolation (FDI) strategy for closed-loop discrete time-invariant systems by using invariant sets and tubes. In this approach, invariant sets are used for fault detection ...

    • Dual mode control strategy for the energy efficiency of complex and flexible manufacturing systems 

      Diaz Castañeda, Jenny Lorena; Ocampo-Martínez, Carlos; Olaru, Sorin (2020-07-01)
      Article
      Accés obert
      The manufacturing industry is shifting towards smart manufacturing, in which both energy efficiency and flexibility are some of the main objectives of this digital transformation. In this regard, the control strategies for ...

    • Fault detection and isolation based on the combination of a bank of interval observers and invariant sets 

      Xu, Feng; Stoican, Florin; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Olaru, Sorin (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, a fault detection and isolation (FDI) approach using a bank of interval observers is developed. From the methodological point of view, a bank of interval observers is designed according to different dynamical ...

    • Improved fault detection and isolation strategy using a bank of interval observers 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, an improved algorithm for actuator-fault detection and isolation (FDI) using a bank of interval observers is presented, where each interval observer matches one considered system mode. In this approach, ...

    • Improved fault detection and isolation strategy using a bank of interval observers 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (International Federation of Automatic Control (IFAC), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, an improved algorithm for actuator-fault detection and isolation (FDI) using a bank of interval observers is presented, where each interval observer matches one considered system mode. In this approach, ...

    • Observer-based sensor fault detectability: about robust positive invariance approach and residual sensitivity 

      Rahman Kodakkadan, Abid; Pourasgharlafmejani, Masoud; Puig Cayuela, Vicenç; Olaru, Sorin; Ocampo-Martínez, Carlos; Reppa, Vasso (2017)
      Text en actes de congrés
      Accés obert
      This paper considers detectability of deviation of sensors from their nominal behavior for a class of linear time-invariant discrete-time systems in the presence of bounded additive uncertainties. Detectable sensor faults ...

    • Observer-based sensor fault detectability: about robust positive invariance approach and residual sensitivity 

      Rahman Kodakkadan, Abid; Pourasgharlafmejani, Masoud; Puig Cayuela, Vicenç; Olaru, Sorin; Ocampo-Martínez, Carlos; Reppa, Vasso (2017-07-01)
      Article
      Accés obert
      This paper considers detectability of deviation of sensors from their nominal behavior for a class of linear time-invariant discrete-time systems in the presence of bounded additive uncertainties. Detectable sensor faults ...

    • On the relationship between interval observers and invariant sets in fault detection 

      Xu, Feng; Stoican, Florin; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Olaru, Sorin (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, the relationship between two settheoretic fault detection (FD) approaches, the interval observerbased and the invariant set-based approaches, is investigated. In FD, interval observers monitor the system ...

    • Robust invariant sets and active mode detection for discrete-time uncertain descriptor systems 

      Wang, Ye; Olaru, Sorin; Valmorbida, Giorgio; Puig Cayuela, Vicenç; Cembrano Gennari, Gabriela (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      In this paper, the computation of robust invariant sets for discrete-time uncertain descriptor systems is investigated. The studied descriptor systems are assumed to be regular and stable subject to unknown but bounded ...

    • Robust MPC for actuator-fault tolerance using set-based passive fault detection and active fault isolation 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Olaru, Sorin; Niculescu, Silviu-Iulian (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés obert
      In this paper, an actuator fault-tolerant control (FTC) scheme is proposed, which is based on tube-based model predictive control (MPC) and set-theoretic fault detection and isolation (FDI). As a robust MPC technique, ...

    • Robust MPC for actuator-fault tolerance using set-based passive fault detection and active fault isolation 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Olaru, Sorin; Niculescu, Silviu-Iulian (2017-03-01)
      Article
      Accés obert
      In this paper, a fault-tolerant control (FTC) scheme is proposed for actuator faults, which is built upon tube-based model predictive control (MPC) as well as set-based fault detection and isolation (FDI). In the class of ...

    • Sensor-fault detection and Isolation using Interval Observers 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper proposes an interval observer-based sensor fault detection and isolation (FDI) approach for the closed-loop systems. In this proposed approach, residuals are defined in such a way that their components are ...

    • Sensor-fault tolerance using robust MPC with set-based state estimation and active fault isolation 

      Xu, Feng; Olaru, Sorin; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Niculescu, Silviu-Iulian (2017-05-25)
      Article
      Accés obert
      In this paper, a sensor fault-tolerant control scheme using robust model predictive control (MPC) and set-theoretic fault detection and isolation (FDI) is proposed. The robust MPC controller is used to control the plant ...

    • Sensor-fault tolerance using robust MPC with set-based state estimation and active fault isolation 

      Xu, Feng; Olaru, Sorin; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Niculescu, Silviu-Iulian (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés obert
      In this paper, a sensor fault-tolerant control (FTC) scheme using robust model predictive control (MPC) and set theoretic fault detection and isolation (FDI) is proposed. The MPC controller is used to both robustly control ...

    • Set-invariance characterizations of discrete-time descriptor systems with application to active mode detection 

      Wang, Ye; Olaru, Sorin; Valmorbida, Giorgio; Puig Cayuela, Vicenç; Cembrano Gennari, Gabriela (2019-09-01)
      Article
      Accés obert
      In this paper, we study robust invariant set characterizations of discrete-time descriptor systems and propose an active mode detection mechanism for discrete-time descriptor systems considering multiple modes of operation. ...

    • Set-theoretic methods in robust detection and isolation of sensor faults 

      Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Olaru, Sorin; Stoican, Florin (2015)
      Article
      Accés obert
      This paper proposes a sensor-fault detection and isolation (FDI) approach based on interval observers and invariant sets. In fault detection (FD), both interval observer-based and invariant set-based mechanisms are used ...