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基于噪声分析的调节阀故障检测方法研究
Alternative TitleA Fault Detection Method for Control Valve Based on Noise Analysis
韩晓佳1,2; 徐皑冬1; 王锴1; 张凝1,2; 刘洋1,2; 姜晶3
Department工业控制网络与系统研究室
Source Publication仪表技术与传感器
ISSN1002-1841
2018
Issue11Pages:128-131, 136
Indexed ByCSCD
CSCD IDCSCD:6416493
Contribution Rank1
Keyword调节阀 故障检测 噪声分析 小波分解 自相关函数
Abstract针对调节阀的在线故障检测问题,文中提出了一种基于噪声分析的故障检测方法。该方法首先利用小波分解技术提取过程信号的噪声;然后,通过数字滤波减少干扰信号;最后,从统计角度出发,计算过程噪声的统计数字特征(自相关函数)来检测故障是否发生。仿真结果表明:该方法可以检测出气动调节阀的阀门堵塞故障,同时验证了该方法的可行性与有效性。
Other AbstractIn order to solve the problem of on-line fault detection of the control valve,a fault detection method based on noise analysis was proposed in this paper. First,the wavelet decomposition technique was used to extract the noise of the process signal. Then,the interference signal was reduced by digital filtering. Finally,from the statistical point of view,the statistical characteristic of the process noise ( autocorrelation function) was calculated to detect whether the fault occurred. The simulation results show that the method can be used to detect the valve clogging fault of the pneumatic control valve and the feasibility and effectiveness of the method are verified.
Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/23668
Collection工业控制网络与系统研究室
Corresponding Author韩晓佳
Affiliation1.中国科学院沈阳自动化研究所
2.中国科学院大学
3.西安大略大学
Recommended Citation
GB/T 7714
韩晓佳,徐皑冬,王锴,等. 基于噪声分析的调节阀故障检测方法研究[J]. 仪表技术与传感器,2018(11):128-131, 136.
APA 韩晓佳,徐皑冬,王锴,张凝,刘洋,&姜晶.(2018).基于噪声分析的调节阀故障检测方法研究.仪表技术与传感器(11),128-131, 136.
MLA 韩晓佳,et al."基于噪声分析的调节阀故障检测方法研究".仪表技术与传感器 .11(2018):128-131, 136.
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