基于数字信号处理器的潜油电泵机组转速测量系统的设计  

Design of rotation speed measurement system for electric submersible pumps based on digital signal processor

作　　者：刘广孚[1] 席文静[1] 刘小华[1] 谢文献[2] 姚诚[2] 雷厚勇 

机构地区：[1]中国石油大学信息与控制工程学院,山东东营257061 [2]中石化胜利油田分公司胜利采油厂,山东东营257000 [3]东胜精工信远石油开发有限责任公司,山东东营257092

出　　处：《中国石油大学学报（自然科学版）》2009年第1期154-156,161,共4页Journal of China University of Petroleum(Edition of Natural Science)

摘　　要：为了实现潜油电泵机组的转速测量,对振动检测系统和信号处理方法进行设计。振动检测系统的核心为数字信号处理器和三维加速度传感器。利用Chirp-Z变换可实现信号的任意窄带高分辨率分析的特点,对振动基频附近的窄带范围进行谱分析,从而精确地得到机组的转速。试验结果表明,测速系统的测量精度可以达到0.1%,完全满足测量要求。设计方法适用于很多测速场合,具有推广价值。In order to measure the rotation speed of electric submersible pumps （ESP）, the vibration detecting system and vibration signal processing method were studied. Digital signal processor （DSP） and three-axis accelerometer act as the core in the vibration detecting system. With the advantage of analyzing in a narrowband with high resolution, Chirp-Z transform was used in spectrum zooming analysis near the base vibration frequency. The test results show that the relative measurement accuracy can reach 0. 1%. The experimental results show that this method satisfies the precision and real-time request. This method can be used in many occasions and is of great value to spread.

关 键 词：数字信号处理器(DSP) 加速度传感器 转速测量 CHIRP-Z变换 潜油电泵机组 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]