TY - GEN

T1 - Control Reconfiguration of LPV Systems Using Virtual Sensor and Virtual Actuator

A1 - Tabatabaeipour,Seyed Mojtaba

A1 - Stoustrup,Jakob

A1 - Bak,Thomas

AU - Tabatabaeipour,Seyed Mojtaba

AU - Stoustrup,Jakob

AU - Bak,Thomas

PB - Elsevier Science

PY - 2012

Y1 - 2012

N2 - In this paper, a fault tolerant control method for linear parameter varying (LPV) systems using a virtual actuator and a virtual sensor is proposed. The basic idea of the method is to insert a reconfiguration block, which consists of an LPV virtual actuator and an LPV virtual sensor, between the plant and the nominal controller such that the fault tolerant goal is achieved without re-designing the nominal controller. The role of the reconfiguration block is to transform the signals from the faulty system such that its behavior is similar to the nominal system from the point of view of the controller and to transform the output of the controller for the faulty system such that the stability and performance goals are preserved. In this paper, we consider the weak fault-hiding goal and stability of the closed loop system. Input to state stabilizing LPV gains of the virtual actuator and sensor are found by solving linear matrix inequalities (LMIs). We show that separate design of these gains guarantees the closed loop input to state stability of the closed loop reconfigured system.

AB - In this paper, a fault tolerant control method for linear parameter varying (LPV) systems using a virtual actuator and a virtual sensor is proposed. The basic idea of the method is to insert a reconfiguration block, which consists of an LPV virtual actuator and an LPV virtual sensor, between the plant and the nominal controller such that the fault tolerant goal is achieved without re-designing the nominal controller. The role of the reconfiguration block is to transform the signals from the faulty system such that its behavior is similar to the nominal system from the point of view of the controller and to transform the output of the controller for the faulty system such that the stability and performance goals are preserved. In this paper, we consider the weak fault-hiding goal and stability of the closed loop system. Input to state stabilizing LPV gains of the virtual actuator and sensor are found by solving linear matrix inequalities (LMIs). We show that separate design of these gains guarantees the closed loop input to state stability of the closed loop reconfigured system.

U2 - 10.3182/20120829-3-MX-2028.00117

DO - 10.3182/20120829-3-MX-2028.00117

SN - 978-3-902823-09-0

VL - 8

BT - 8th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes

T2 - 8th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes

T3 - I F A C Workshop Series

T3 - en_GB

SP - 818

EP - 823

ER -