旋转导向钻井中矫正温度对无刷电机影响研究  

Research on the Effect of Corrected Temperature on Brushless Motor in Rotary Steerable Drilling

作　　者：周静[1] 杨飞[1] 尚海燕[1] ZHOU Jing;YANG Fei;SHANG Haiyan(Xi’an Petroleum University,Downhole Measurement and Control Laboratory,Oil and Gas DrillingTechnology National Engineering Laboratory,Xi’an 710065,Shaanxi,China)

机构地区：[1]油气钻井技术国家工程实验室西安石油大学井下测控研究室

出　　处：《电气传动》2019年第9期77-81,共5页Electric Drive

基　　金：国家科技重大专项(2011ZX05021-005);中石油集团重大专项(2014B-4313)

摘　　要：基于无刷直流电机的反向电动势位置检测原理,模拟井下环境进行实验,分析井下高温环境对无刷电机中各相线圈参数的影响,得出温度与电机参数的关系。通过分析相电压与反向电动势之间的关系,引入干扰系数,利用反向矫正算法,得到更加准确的反向电动势。设计硬件电路和实验,对理论算法进行了验证,得到矫正后的实验数据波形。结论显示,在井下高温环境干扰下,通过电路优化和算法矫正获得准确的反向电动势,能够更加精准控制井下无刷直流电机,达到提高定位总成执行效率的目的。Based on the principle for the reverse electromotive force of brushless DC motor position detection, analyzing the influence on the coil parameters of each phase in the brushless motor under the downhole high temperature environment. The relationship between the temperature and the motor parameters was got. Through the analysis of the relationship between the back electromotive force current and phase voltage,introducing the interference coefficient,through the reverse correction,more accurate reverse electromotive force was got. Through the hardware circuit design and algorithm of theory and experiment validation,the correction of the experimental data waveform was got. Results indicate that by circuit optimization and correction algorithm the accurate counter electromotive force under the disturbance of downhole high temperature environment is obtained,it is able to accurately control the downhole brushless DC motor and reduce the borehole trajectory deviation.

关 键 词：无刷直流电机 钻井 高温 电机驱动 

分 类 号：TM33[电气工程—电机]