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标题：基于滑模重构观测器的伺服系统容错控制律设计 |
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作者：高锦秋，鲁家栋，刘景林 |
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| 2016年第6期 访问次数：306次 |
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摘要：针对同时存在执行器及传感器故障情形的伺服系统，提出了基于滑模观测器的主动容错控制律设计方法。在简要分析系统故障模型的基础上，采用添加滤波器方法，将原系统等效虚拟转化为只包含执行器故障的系统模型。然后基于线性矩阵不等式给出了滑模观测器解算方法，得到了故障重构值并设计了容错控制律。最后开展了仿真算例分析，验证了所提方法的有效性。
关键词：故障重构；滑模；容错；执行器；传感器
Abstract: An active fault tolerant control law based on sliding mode observer was proposed for servo system with actuator and sensor faults. Firstly the fault system model was analyzed, and the filter was introduced, which can transform the original system to the virtual system with actuator faults. Then the design method of gain matrix in sliding mode observer was given by linear matrix inequality, and the fault tolerant control algorithm was provided combined with the reconstructed faults. Finally an example was proposed to validate the effectiveness.
Key words: fault reconstruction; sliding mode; fault tolerant; actuator; sensor
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