刘在伦;车琴琴;
LIU Zai-lun,CHE Qin-qin(Lanzhou University of Technology,Lanzhou 730050,China)

• 1:兰州理工大学
• 2:兰州理工大学 甘肃兰州730050
• 3:甘肃兰州730050

摘要(Abstract)：

针对离心泵故障诊断中存在对初生气蚀点检测不准确和实时性不够的问题,提出了一种运用小波分析技术对离心泵初生汽蚀进行检测的方法。采用Trous算法并借助了小波模极大值理论对变换值进行信号突变点的判断,并运用MATLAB对所采用算法准确性进行了仿真验证。设计了定流量离心泵初生汽蚀点在线检测与报警系统。
After the actuality study of measuring the incipient cavitations of centrifugal pump,according to the problem that the precision of measuring and real time was insufficient.A kind of new method to measuring the incipient cavitations of centrifugal pump with the wavelet transform technique was represented.Adopting Trous algorithm and the theory of impression maximum value of wavelet transform,the singularity of signal was measured,and the veracity of the algorithm was validate through simulation using Matlab.At last the system in order to on-line measure and warn the incipient cavitations of centrifugal pump was designed.

关键词(KeyWords)： DSP;离心泵;初生汽蚀;小波分析;检测
DSP;centrifugal pump;the incipient cavitations;wavelet analysis;measuring

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 刘在伦;车琴琴;
LIU Zai-lun,CHE Qin-qin(Lanzhou University of Technology,Lanzhou 730050,China)

参考文献(References)：

• [1]郝点,周昌静,张志飞.相关-小波分析用于离心泵初生气蚀诊断[J].石油大学学报(自然科学版),2005,29(2):78-82.
• [2]黄忠富,姜哲,赵斌娟,等.利用小波分析诊断水泵初始阶段的汽蚀故障[J].排灌机械,2005,23,(2):4-7.
• [3]潘洪湘,宗伟,刘连光.基于数字信号处理器的短时电能质量扰动检测算法[J].电网技术,2004,(10):68-71.
• [4]任震.小波分析及其在电力系统中的应用[M].北京:中国电力出版社,2003.
• [5]杨福生.小波变换的工程分析与应用[M].北京:科学出版社,1999.
• [6]林轶群,林奇峰.基于小波多孔算法的暂态电能质量检测方法[J].中国电力,2002,35(10):54-57.
• [7]张慧敏,龚德利,骆德发.离心泵性能测试的自动控制系统[J].流体机械,2003,31(7):29-32.
• [8]刘和平.TMS320LF240xDSP结构、原理及应用[M].北京:航空航天大学出版社,2002.
• [9]张雄伟,陈亮,徐光辉.DSP芯片的原理与开发应用(第三版)[M].北京:电子工业出版社,2003.
• [10]陶永华,尹怡欣,葛芦生,新型PID控制及其应用[M].北京:机械工业出版社,2001.