• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of aerospace engineering >Robust Adaptive Fault-Tolerant Control for Hypersonic Flight Vehicles with Multiple Faults
【24h】

Robust Adaptive Fault-Tolerant Control for Hypersonic Flight Vehicles with Multiple Faults

机译：具有多个故障的超音速飞行器的鲁棒自适应容错控制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper proposes a robust adaptive strategy for longitudinal dynamics of generic hypersonic flight vehicles with uncertainties and faults. Flight vehicles are generally subjected to disturbances and multiple faults, which should be compensated for to preclude performance degradation. To solve this problem, considering fast abrupt faults such as actuator stuck faults, an adaptive fault observer is added into the nominal dynamic inversion controller to accommodate the effects of faults with discrete function patterns. In addition, since the above observer is designed only for fast abrupt faults, an online support vector machine compensator is proposed to learn the state error caused by other faults. As the error contains both dynamic uncertainties and slow variation faults, additional controllers are not required to get rid of the unwanted faults. Stability of the overall closed-loop system is analyzed with the Lyapunov stability theory, and output tracks the expected trajectory. The simulation is presented with multiple faults to verify the effectiveness and feasibility of the proposed scheme. (C) 2014 American Society of Civil Engineers.
机译：本文针对具有不确定性和故障的通用超音速飞行器的纵向动力学提出了一种鲁棒的自适应策略。飞行器通常会受到干扰和多重故障，应该对其进行补偿以防止性能下降。为了解决这个问题，考虑到快速突然的故障，例如执行器卡住的故障，将自适应故障观测器添加到标称动态反转控制器中，以适应具有离散功能模式的故障的影响。此外，由于上述观察器仅设计用于快速突发故障，因此建议使用在线支持向量机补偿器来学习由其他故障引起的状态误差。由于错误既包含动态不确定性，又包含缓慢变化的故障，因此不需要其他控制器即可消除不必要的故障。使用Lyapunov稳定性理论分析了整个闭环系统的稳定性，并且输出跟踪了预期的轨迹。仿真结果表明，该方法存在多个故障，验证了所提方案的有效性和可行性。 （C）2014年美国土木工程师学会。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号