Flatness-based algebraic fault diagnosis for distributed-parameter systems

Flatness-based algebraic fault diagnosis for distributed-parameter systems
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分布式参数系统基于平坦度的代数故障诊断

DOI:
10.1016/j.automatica.2020.108987
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发表时间:
2020
期刊:
Autom.
影响因子:
--
通讯作者:
J. Deutscher
J. Deutscher
中科院分区:
--
文献类型:
--
作者:
Fischer;J. Deutscher

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本文提出了一种基于平坦性的方法来诊断一大类抛物型和双调和分布参数系统的故障。故障DPS的输入、输出和扰动可以定义在域内或边界上。时变附加的致动器和传感器故障的多项式形式。在存在多项式形式的扰动时,通过计算依赖于已知输入和测量的代数表达式,在有限时间内实现故障识别。该表达式是将积分变换应用于故障DPS的结果。结果表明,相应的积分核遵循从基于平坦性的实现的一个DPS的设定点变化。后者的可解性导致故障可识别条件。对于未知形式的有界扰动作用于DPS,引入了一个安全的有限时间故障检测阈值。本文的结果表明,在域致动器和边界传感器故障的悬臂梁。对于多项式型和有界随机扰动,仿真验证了故障梁的故障检测。
This paper presents a flatness-based approach to the fault diagnosis for a large class of parabolic and biharmonic distributed-parameter systems (DPS). The inputs, outputs and disturbances of the faulty DPS can be defined in-domain or at a boundary. Time-varying additive actuator and sensor faults of polynomial form are considered. In the presence of disturbances with polynomial form, fault identification is achieved in finite-time by evaluating an algebraic expression depending on the known inputs and measurements. This expression results from applying integral transformations to the faulty DPS. It is shown that the corresponding integral kernels follow from the flatness-based realization of a set-point change for a DPS. The solvability of the latter results in fault identifiability conditions. For bounded disturbances of unknown form acting on the DPS, a threshold for secured finite-time fault detection is introduced. The results of the paper are demonstrated for a cantilever beam subject to in-domain actuator and boundary sensor faults. For polynomial type and bounded stochastic disturbances fault detection is verified for the faulty beam in simulations.
使用调制函数方法对具有分布式输入和输出的抛物线系统进行故障检测
DOI: 10.1016/j.ifacol.2017.08.1195
发表时间: 2017
期刊: IFAC-PapersOnLine
影响因子: --
作者:
F. Fischer;J. Deutscher
通讯作者: J. Deutscher
具有多项式故障的抛物线系统的基于调制函数的故障检测
DOI: 10.1016/j.ifacol.2018.09.602
发表时间: 2018
期刊: IFAC-PapersOnLine
影响因子: --
作者:
Fischer;J. Deutscher
通讯作者: J. Deutscher
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发表时间: 2011-01-01
影响因子: 4.1
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DOI: 10.1016/j.automatica.2019.04.048
发表时间: 2019-09
期刊: Autom.
影响因子: --
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通讯作者: Gilberto Pin;Boli Chen-;T. Parisini
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发表时间: 2017-01-01
影响因子: 1.3
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