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Fault-tolerant permanent-magnet vernier (FTPMV) machine is a new permanent-magnet (PM) brushless machine, incorporating the merits of high torque density and fault-tolerant characteristic. However, the high usage of rare-earth PMs significantly increases the machine cost. In this paper, low cost magnets are employed to reduce the cost of the FTPMV machine. Meanwhile, the influence of PM materials...
The problem of robust reliable controller design against actuator faults for systems with polytopic type uncertainty is addressed. The strategy that using sampled- data control with high-order hold is adopted to tackle the situations that no sampled-data controller with zero-order hold in existence. This problem is formulated in terms of solutions to a set of linear matrix inequalities. The efficiency...
This paper studies the problem of designing fault-tolerant adaptive controllers via state feedback for LTI with actuator failures. An unilateral switching scheme is proposed to deal with the scenario that there have no enough actuators to realize the original planed state tracking task, two different controller parameters update laws are designed, and the proper one will be activated according with...
This paper studies the problem of designing fault-tolerant adaptive tracking controllers via state feedback for linear time invariant plants with lock-in-place (LIP) actuator failures, In the case of LIP failure the actuator "freezes" at a certain condition and does not respond to subsequent commands. A new direct adaptive state feedback control scheme to developed for compensate the LIP...
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