Optimized Sensor Selection for Control and Fault Tolerance of Electromagnetic Suspension Systems

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Abstract:This paper presents a systematic design framework for selecting the sensors in an optimized manner, simultaneously satisfying a set of given complex system control requirements, i.e. optimum and robust performance as well as fault tolerant control for high integrity systems. It is worth noting that optimum sensor selection in control system design is often a non-trivial task. Among all candidate sensor sets, the algorithm explores and separately optimizes system performance with all the feasible sensor sets in order to identify fallback options under single or multiple sensor faults. The proposed approach combines modern robust control design, fault tolerant control, multi-objective optimization and Monte Carlo techniques. Without loss of generality, its efficacy is tested on an electromagnetic suspension system via appropriate realistic simulations.

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