| 容差模拟电路软故障诊断的一种方法 |
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| 引用本文： | 叶笠,王厚军,田书林,叶芃.容差模拟电路软故障诊断的一种方法[J].电工技术学报,2011(5):119-125. |
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| 作者姓名： | 叶笠 王厚军 田书林 叶芃 |
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| 作者单位： | 电子科技大学自动化工程学院; |
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| 基金项目： | 新世纪优秀人才支持计划(NCET-05-0804); 国家高技术研究发展计划专项经费(2006AA06Z222)资助项目 |
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| 摘 要： | 首先以节点电压灵敏度为基础推导出了电路状态规则表和节点电压增量比矢量故障字典,并以此对故障元件进行定位;进一步地,再根据节点电压增量方程组计算出故障元件参数的变化量,从而达到定量诊断的目的.该方法不仅具有测前模拟次数少、占用存储空间小、诊断范围宽的特点,还能对故障元件参数的变化量进行较精确地估算.文中给出的仿真实验结果...
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| 关 键 词： | 模拟电路 故障诊断 灵敏度 容差 |
An Approach for Soft Fault Diagnosis on Analog Circuits With Tolerance |
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| Ye Li Wang Houjun Tian Shulin Ye Peng.An Approach for Soft Fault Diagnosis on Analog Circuits With Tolerance[J].Transactions of China Electrotechnical Society,2011(5):119-125. |
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| Authors: | Ye Li Wang Houjun Tian Shulin Ye Peng |
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| Affiliation: | Ye Li Wang Houjun Tian Shulin Ye Peng(University of Electronic Science and Technology of China Chengdu 610054 China) |
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| Abstract: | Based on the node voltage sensitivities,the circuit-state rule table and the node-voltage-increment-ratio fault dictionary are both deduced to locate the faulty component firstly.Furthermore,the parametric deviation value of the faulty component is calculated from the node voltage increment equations.The new approach has some significant new features of less simulation runs before test,minimal storage space,wide diagnosis scope and precise parameter estimation.The promising experimental results manifest the... |
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| Keywords: | Analog circuit fault diagnosis sensitivity tolerance |
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