RETRACTED: Boiler Tube Leakage Acoustic Localization Error Analysis (Retracted Article)

被引：0

作者：

Wang, Peng ^{[1
]}

An, Liansuo ^{[1
]}

Jiang, Genshan ^{[1
]}

Shen, Guoqing ^{[1
]}

Lu, Yongxing ^{[1
]}

机构：

[1] North China Elect Power Univ, Minist Educ, Key Lab Condit Monitoring & Control Power Plant E, Beijing, Peoples R China

来源：

2010 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2010年

基金：

中国国家自然科学基金;

关键词：

Acoustic; leakage localizition; time differences of arrive; generalized cross correlati; accelerationg genetic algorithm; error;

D O I：

10.1109/APPEEC.2010.5448980

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Efficient and reliable operation is the main requirement of the modern power plant, hence it's significant that the boiler tube leakage source is localized precisely. The four-element acoustic array was exploited in the furnace, a set of hyperbolic equations were established and the sensors distributed for capture the leakage signal were given. The stable and sharp peak can be obtained by an approximation of the maximum likelihood (ML) estimator, which was verified via the experiment on localization of leakage. The time differences of arrival (TDOA) error level was 0.1us, the array failed to fix position as the remarkable coordinate error, while the error level was 0.01us, the coordinates error was linearized and reduced to the permitted range (less than 1m).

引用

页数：4