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现有控制重构方案均需要精确的故障定位 ,存在着诊断过程中系统耐故障能力不足的缺陷 .文中提出一种分段重构的重构策略以解决该问题 .只要故障被定位至某些适当的元件集合 ,控制重构就开始进行 ,并随诊断过程的深入分段推进 .该策略被转化为一个鲁棒模型跟踪问题 ,并提出一种基于 H2 /H∞ 混合性能指标优化的控制律设计方法实现 .针对某飞行器具体设计了可重构飞控系统 ,结果表明该方法具有很好的重构效果 .
Existing control reconfiguration schemes all need accurate fault location, and there is a defect that the system is not fault-tolerant in the process of diagnosis. In this paper, a reconstruction strategy of segment reconstruction is proposed to solve the problem. As long as the fault is located to some appropriate components The collection and control reconstruction begin with the further subdivision of the diagnosis process.The strategy is transformed into a robust model tracking problem and a control law design method based on H2 / H∞ mixed performance optimization is proposed A reconfigurable flight control system is designed for an aircraft, the results show that the method has a good reconstruction effect.