| 定量与定性相结合的动量轮故障可诊断性评价 |
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| 引用本文： | 刘文静,刘成瑞,王南华,王大轶.定量与定性相结合的动量轮故障可诊断性评价[J].中国空间科学技术,2011,31(4). |
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| 作者姓名： | 刘文静 刘成瑞 王南华 王大轶 |
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| 作者单位： | 北京控制工程研究所,北京100190;空间智能控制技术重点实验室,北京100190 |
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| 基金项目： | 国家自然科学基金(61004073,60874055); CAST创新基金(CAST2011-6)资助课题 |
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| 摘 要： | 为了提高动量轮的故障诊断性能,采用定量与定性相结合的方法对故障可诊断性评价方法开展研究.在分析动量轮和控制器模型的基础上,建立定量的动量轮闭环系统模型；分析动量轮的各种故障模式,将其分为测量类、驱动类和控制器类故障,并在动量轮系统模型中进行表示；依据故障到输出的传递函数是否等于0以及不同故障到输出的传递函数是否相同的思路,研究各类故障的可检测性和可分离性判断条件,对动量轮的各故障模式进行评价,给出相应的评价结果对于不可分离的故障集合,研究基于定性模型的故障可诊断性评价方法,即根据动量轮各功能模块之间的关系,结合动量轮的故障模式影响分析结果,建立故障与征兆之间的关联矩阵,通过分析各故障对应的数据,进一步给出动量轮故障可诊断性的评价结果.最后,提出故障可诊断性相关的定量指标,根据动量轮故障可诊断性评价结果,给出各故障以及动量轮的可检测度和可分离度等,为后续故障可诊断性设计提供依据.
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| 关 键 词： | 动量轮 故障可诊断性评价 故障可检测性 故障可分离性 卫星 |
Quantitative and Qualitative Model Based Fault Diagnosability Evaluation of Momentum Wheel |
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| Liu Wenjing,Liu Chengrui,Wang Nanhua,Wang Dayi.Quantitative and Qualitative Model Based Fault Diagnosability Evaluation of Momentum Wheel[J].Chinese Space Science and Technology,2011,31(4). |
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| Authors: | Liu Wenjing Liu Chengrui Wang Nanhua Wang Dayi |
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| Institution: | Liu Wenjing1,2 Liu Chengrui1,2 Wang Nanhua1,2 Wang Dayi1,2(1 Beijing Institute of Control Engineering,Beijing 100190) (2 Science and Technology on Space Intelligent Control Laboratory,Beijing 100190) |
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| Abstract: | The fault diagnosability evaluation method of the momentum wheel based on the quantitative and qualitative model was proposed to enhance its fault diagnosis performance.Considering the momentum wheel model and its controller model,the momentum wheel system model was obtained and it included the influence of three types of faults,namely measurement-related,driven-related and the controller-related faults.By judging whether the transfer function from the fault to the output equals to 0 or whether different fa... |
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| Keywords: | Momentum wheel Fault diagnosability evaluation Fault detectability Fault isolability Satellite |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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