High Performance Reconfigurable Control System Study

本研究关注的是解决可重构控制系统实际问题的开发方法。最初的动机来自于在高可靠性系统中发生硬件故障时对控制元件（例如执行器）进行分析冗余管理的需要。一个这样的例子是现代作战飞机受到致动器/表面损伤。一个主要的任务是实现可重构控制设计，平衡损伤可检测性和足够的鲁棒性。这包括仔细选择控制器的类型和参数以及所使用的损伤检测滤波器。提出了使这种选择系统化的算法。进一步的研究重点是提高故障检测和隔离FDI单元的速度和准确性。建议采取一种更确定的方法，以便更好地利用所有可获得的信息。描述了一种基于规则的FDI策略。预期通过拟议的研究所取得的进展将大大改善整个系统的可靠性和可维护性。

This research is concerned with developing methodologies for solving practical issues of reconfigurable control systems. The original motivation comes from the need for analytical redundant management of control elements (e.g.actuators) in the event of hardware failures in high reliability systems. One such example is modern combat aircraft subjected to actuator/surface impairments. A major task is to achieve reconfigurable control designs balancing impairment detectability and sufficient robustness. This involves careful selection of types and parameters of the controllers and the impairment detecting filters used. Algorithms are proposed to make such selection systematic. A further investigation is focused on enhancing the speed and accuracy of the failure detection and isolation FDI unit. It is suggested that a more deterministic approach be taken to better utilize all available information. A rule based strategy for FDI is described. Developments made through the proposed research are expected to result in significant improvement in terms of the overall system's reliability and maintainability.