2212 Fault Detection Based on GIMC Structure for Magnetic Suspension System

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  • 2212 磁気浮上システムに対するGIMC構造に基づく故障検出(磁気浮上・磁気軸受の制御(2))

Abstract

This paper deals with a fault detection for a magnetic suspention system by using a switching control based on Generalized Internal Model Control (GIMC) structure. To design robust fault detection filters, two fault detection design problems are formulated as multiple objective optimization problems by minimizing the effects of disturbances and maximizing the fault sensitivity involving a LTI system with disturbance and fault signals. The designed fault detection filters by solving each optimization problems are implemented with the magnetic suspention system to verify its validity. A filter designed by the problem I has good transient performance, but the output signal of the filter is affected by the disturbance signals. Another filter which is designed via the problem 2, however, has good robustness for disturbance signals. Moreover, experimental results show that both filters have enough fault detection properties compared with a conventional detection filter.

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