Fault-tolerant control of discrete-event systems

容错控制的目的是在故障的情况下修改给定的控制器，使得受控的故障对象再次完成其任务。为此，控制器的故障诊断和重构的步骤是必不可少的，在文献中它们主要是彼此独立地处理的。本项目的目的是开发一种方法，用于容错控制的离散事件系统相结合的方法，利用现有的冗余的重新配置方法的主动故障诊断。其主要思想是明确确定的状态和故障发生后的植物的行为，以适当地修改植物的期望轨迹。基于自动机测试理论的基于一致性的诊断方法将与采用局部搜索的重新配置方法相结合，其中这两种方法都是在申请人的小组中的初步工作中开发的。新的综合方法的适用性应通过将其应用于试验工厂来证明。

Fault-tolerant control aims at modifying a given controller in case of a fault such that the controlled faulty plant again fulfills its task. For this, the steps of fault diagnosis and reconfiguration of the controller are essential, which mainly have been treated independently from one another in literature. The aim of this project is to develop a method for fault-tolerant control of discrete-event systems which combines methods for the active fault diagnosis with a reconfiguration approach exploiting available redundancies. The main idea is to unambiguously determine the state and the behavior of the plant after the occurrence of the fault in order to modify the plant's desired trajectory appropriately. A consistency-based diagnostic method based on the theory of testing of automata is to be combined with a reconfiguration method employing a local search, where both methods have been developed in preliminary work in the group of the applicant. The applicability of the new integrated method shall be demonstrated by applying it to a pilot plant.