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Fault diagnosis and fault tolerant control for nonlinear satellite attitude control systems

机译:非线性卫星姿态控制系统的故障诊断和容错控制

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摘要

In this paper, an integrated fault diagnosis and fault tolerant control scheme is investigated for nonlinear satellite attitude control systems. The fault diagnosis is performed by a novel interactive multiple model approach aiming at reducing the size of the model set. Unknown fault parameters are jointly estimated with system states by state augmentation and a bank of Unscented Kalman Filters. Based on the faulty information obtained from the fault diagnosis system, a proportional-derivative controller is used to recover the faulty system. Simulation results demonstrate the effectiveness of the proposed fault diagnosis and fault tolerant control scheme.
机译:本文研究了非线性卫星姿态控制系统的集成故障诊断和容错控制方案。通过新颖的交互式多模型方法来执行故障诊断,旨在减少模型集的大小。未知故障参数通过状态增强和无味卡尔曼滤波器库与系统状态联合估算。根据从故障诊断系统获得的故障信息,使用比例微分控制器恢复故障系统。仿真结果证明了所提出的故障诊断和容错控制方案的有效性。

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