现代电子技术2017，Vol.40Issue(16)：22-25,28,5.DOI:10.16652/j.issn.1004-373x.2017.16.006
基于多传感器融合的抽油机运动周期的研究
Research on motion period of pumping unit based on multi-sensor fusion
摘要
Abstract
Analysis on dynamometer card of well is an important means to assess the operating status of the deep well pump,pumping unit and sucker rod.The motion period of pumping unit is taken as an important parameter of the dynamometer card,whose veracity affects the accuracy of dynamometer card directly.A method to calculate the motion period of pumping unit based on multi-sensor fusion is proposed to overcome the poor exactitude disadvantage of the method which adopts single suspension point accelerated speed to determine the motion period of pumping unit.Three kinds of signals (suspension point acceleration,suspension point load and motor electric power) collected by different sensors in same period are filtered by Kalman filtering method to eliminate interference noise.The period values of the filtered signals are calculated in the time domain and frequency domain respectively.The optimal period values are obtained by the weighted fusion method.The experimental results show that the multi-sensor fusion method has higher veracity of the motion period value of the pumping unit than that obtained by the single acceleration method.关键词
抽油机/卡尔曼滤波/多传感器/频域FFTKey words
pumping unit/Kalman filtering/multi-sensor fusion/frequency domain FFT分类
信息技术与安全科学引用本文复制引用
仲志丹,马利丹..基于多传感器融合的抽油机运动周期的研究[J].现代电子技术,2017,40(16):22-25,28,5.基金项目
国家自然科学质子交换膜燃料电池发电系统的最优控制研究(50906022) （50906022）
河南省高等学校重点科研项目:基于惯性的超低频周期运动测量仪研究(15A460023) （15A460023）
