A sliding mode approach for active fault tolerant control and estimation

用于主动容错控制和估计的滑模方法

• 批准号: EP/F004702/1
• 负责人: Christopher Edwards
• 金额: $ 11.23万
• 依托单位: University of Leicester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FF004702%2F1
• 关键词: sliding; mode; approach; active; fault

This proposal will consider the use of sliding mode concepts for active fault tolerant control and estimation in an 'active aircraft'. Sliding mode controllers have strong robustness properties to a certain class of uncertainty and have been shown to provide inherent fault tolerant control with respect to actuator faults. Sliding mode observers have an ability to reconstruct un-measurable signals within a dynamic system by appropriate scaling and filtering of the so-called 'equivalent output error injection'. This is a unique property of sliding mode observers which emanates from the fact that the introduction of a sliding motion forces the outputs of the observer to exactly track the plant measurements. Previous work has investigated the potential of sliding mode ideas for fault tolerant control in a civil aircraft with 'conventional' control surfaces. In an active control environment a key challenge will be to apply these ideas in a less traditional setting in which there is a proliferation of 'unconventional' actuators or sensor arrays. A problem formulation will be developed during the project so that the signals to be reconstructed represent unmeasured or unmeasurable external quantities which impact on the aircraft system - either externally (environmental conditions) or internally (associated with the airframe itself).

本建议将考虑使用滑模概念的主动容错控制和估计的“主动飞机”。滑模控制器对某类不确定性具有很强的鲁棒性，并且已经被证明可以提供关于致动器故障的固有容错控制。滑动模式观测器能够通过对所谓的“等效输出误差注入”进行适当的缩放和滤波来重建动态系统中不可测量的信号。这是滑模观测器的一个独特属性，它源于这样一个事实，即引入滑动运动迫使观测器的输出精确地跟踪设备测量。以前的工作已经调查了潜在的滑模思想的容错控制在民用飞机与“传统”的控制面。在主动控制环境中，一个关键的挑战将是将这些想法应用在一个不太传统的设置中，其中有一个扩散的“非常规”致动器或传感器阵列。在项目期间将开发一个问题公式，以便要重建的信号代表影响飞机系统的不可测量或不可测量的外部量-外部（环境条件）或内部（与机体本身有关）。

项目成果

Sliding Mode Observers for Fault Detection and Isolation in a Network of Dynamical Systems

用于动态系统网络中的故障检测和隔离的滑模观测器

• 发表时间: 2009
• 作者: P Menon

Sliding Mode Schemes for Drag Estimation: 1st Year Progress Report

用于阻力估计的滑模方案：第一年进度报告

• 发表时间: 2009
• 作者: H Alwi