학술논문

Leak detection of gas transport pipelines based on wigner distribution
Document Type
Conference
Source
2011 International Symposium on Advanced Control of Industrial Processes (ADCONIP) Advanced Control of Industrial Processes (ADCONIP), 2011 International Symposium on. :258-261 May, 2011
Subject
Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Robotics and Control Systems
Pipelines
Leak detection
Acoustics
Time frequency analysis
Monitoring
Transforms
Signal analysis
Language
Abstract
This paper reports on the application of Wigner-Ville Distribution (WVD) method in leak detection of gas transport pipelines. WVD of the acoustic signal inside a pipeline is used to detect the change of the signal caused by leak. In order to reduce the influence of cross term disturbances, the time average of WVD results is calculated and used as the residual to detect leak faults. Experimental results based on real data show that the method can detect the leak faults of long gas transport pipelines effectively.