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油井井下工具供电及电机控制系统研究
其他题名Research on Power Supply and Motor Control System of Downhole Tools
张新超
学位类型工程硕士
导师侯增广
2012-05-24
学位授予单位中国科学院研究生院
学位授予地点中国科学院自动化研究所
学位专业控制工程
关键词随钻测量 无刷直流电机 电源控制 数字信号处理器 模糊控制 Measurement While Drilling Brushless Dc Motor Power Control Digital Signal Processor Fuzzy Control
摘要深水钻井工程中进行随钻工程参数测量,可以实时监测井下地层压力,作业者可以据此调整钻井液密度和井眼导向,从而提高钻井效率。本文针对目前国内缺乏自主研制随钻地层压力测试工具的现状,结合国家十一五重大专项课题“深水油气田开发钻完井工程配套技术”子课题“随钻地层压力测量装置研制”,对井下工具供电和电机控制系统的关键技术进行了深入的分析研究,并开发了基于涡轮发电机的供电电源和无刷直流电机控制系统设计方案,解决了随钻测量工具中的电源供应和电动阀控制的关键问题。 本文首先分析了国内外井下供电电源和电机控制系统研究现状及其关键技术的发展,介绍了课题的研究背景和研究目的。 随后,根据涡轮发电机电源系统的特点,结合开关电源不同控制方法之间的优劣分析,在考虑井下设备要求的情况下,设计了涡轮发电机开关电源整流稳压模块,完成了井下供电电源的功能实现。 然后,通过对无刷直流电机控制原理和调速策略的研究,开发了一套基于DSP的无刷直流电机控制系统。该系统采用模糊自适应PID控制算法,系统具有稳态性好、鲁棒性强、自适应能力强等特点,满足了井下控制设备抗干扰性强的要求。 最后,为了验证所设计的井下供电电源和电机控制系统的功能,以及对井下高温振动环境的适应性,分别在室内模拟环境下和中海油环境实验室进行了一系列的实验测试。实验结果表明,所研制的井下供电电源和电机控制系统能够为随钻测量设备提供稳定有效的直流电压和安全可靠的电动阀控制。
其他摘要Measurement while drilling in deepwater drilling engineering can monitor pressure data underground in real time. Based on these pressure data, the operator can adjust the density of drilling fluid and wellbore orientation in order to improve the efficiency of drilling. At present, there is no real formation pressure-while-drilling with independent intellectual property at home which have be developed yet. Based on the current situation in this area, and combined with the national 11th five-year key project of “supporting technology of large scale oil and gas field deepwater drilling and completion projects” sub-project “development of formation pressure while drilling measuring device”, we analysised the key technologies of power supply and control system in downhole tools, as well as designed a turbine generator power supply and brushless DC motor control system design to resolve the power and control problem. First, the research situation and key technologies development of underground power supply and control systems at home and abroad are presented. Then the research background and research purposes are introduced. Based on these above analysis, we selected downhole turbine generators power supply and motor control system design as the paper topic and main contents. Second, according to the characteristics of the turbine generator power system and the pros and cons analysis of different switching power supply control method,a voltage regulator module for turbine generator switching power supply is designed to provide a steady supply of DC voltage for downhole tools which meeting the environmental requirements of downhole control. Third, under the premise of explaining the basic control principle and speed control strategy of brushless DC, a DSP-based brushless DC motor control system is developmented. The motor control system uses fuzzy adaptive PID control algorithm. In Matlab/Simulink environment, the model of BLDC motor control system is established, whose simulation analysis results show that the control system owns a good steady-state output, a strong robustness and an excellent adaptive ability. Finally, in order to verify the function completeness and environments adaptability of downhole power supply and control systems, a series of experiments are designed in indoor simulation environment and CNOOC environmental laboratory. The experimental results show that the underground power supply and control systems we designed can provide a st...
馆藏号XWLW1803
其他标识符2009M8014628007
语种中文
文献类型学位论文
条目标识符http://ir.ia.ac.cn/handle/173211/7631
专题毕业生_硕士学位论文
推荐引用方式
GB/T 7714
张新超. 油井井下工具供电及电机控制系统研究[D]. 中国科学院自动化研究所. 中国科学院研究生院,2012.
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