Performance of reconfiguration structures based on the constrained control

An approach is proposed for reconfigurable control structure design to obtain a system tolerant to state-variable sensor faults. The method is based on discrete-time constrained control design techniques for linear systems with state constraints, defined by linear equalities. Degradation in steady state performance is dealt with fixing that state variable which is associated with sensor fault to zero value. Since that control design can be viewed as a specific pole-assignment problem, reconfigured LQ control structures, as well as stabilizing reconfiguration structure are introduced.