Optimised configuration of sensors for fault tolerant control of an electro-magnetic suspension system
Optimised configuration of sensors for fault tolerant control of an electro-magnetic suspension system
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DOI：
10.1080/00207721.2011.598959
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发表时间：
2012-10
影响因子：
4.3
通讯作者：
K. Michail;A. Zolotas;R. Goodall;J. Whidborne
中科院分区：
文献类型：
--
作者：
K. Michail;A. Zolotas;R. Goodall;J. Whidborne
对于任何给定的系统，传感器的数量和位置都会影响系统的闭环系统性能和可靠性。因此，控制系统设计中的一个问题是在某种最佳意义上选择传感器，同时考虑系统的性能和可靠性。虽然已经提出了一些方法来处理上述的一些方面，但在这项工作中，提出了一个同时处理控制和可靠性方面的设计框架。该框架能够以最小的传感器冗余度识别出即使在单个或多个传感器故障情况下也能获得最佳性能的最佳传感器集。提出的系统框架结合了线性二次型高斯控制、容错控制和多目标优化。通过对电磁悬浮系统的适当仿真，验证了所提框架的有效性。
For any given system the number and location of sensors can affect the closed-loop performance as well as the reliability of the system. Hence, one problem in control system design is the selection of the sensors in some optimum sense that considers both the system performance and reliability. Although some methods have been proposed that deal with some of the aforementioned aspects, in this work, a design framework dealing with both control and reliability aspects is presented. The proposed framework is able to identify the best sensor set for which optimum performance is achieved even under single or multiple sensor failures with minimum sensor redundancy. The proposed systematic framework combines linear quadratic Gaussian control, fault tolerant control and multiobjective optimisation. The efficacy of the proposed framework is shown via appropriate simulations on an electro-magnetic suspension system.