【作者】 高岩；

【导师】 席爱民；

【作者基本信息】 西安建筑科技大学 ， 控制理论与控制工程， 2004， 硕士

【摘要】 随着石油行业竞争的日趋激烈，降低石油的开采成本就势在必行，于是研制新型的石油钻机就显得尤为重要，因为国内目前使用的钻机比较陈旧，控制方式非常落后，导致钻井周期长、钻头损坏率高，这是降低石油开采成本的重要制约因素；而且落后的控制方式使得钻井过程容易发生溜钻、卡钻等事故。因此针对国内石油钻机的这种落后现状，本文阐述了改造的石油钻机控制系统的整体设计，本文是以江汉石油管理局第四机械厂生产的陆地3000米ZI30DBT型钻机为依托的。 首先本文阐述了钻机的组成与工艺特点，然后描述了基于西门子s7-300PLC的控制系统组成，然后针对传统钻机自动送钻控制策略落后的缺陷，同时考虑到钻机的复杂性、大滞后等特点，提出了模糊控制算法与施密斯(Smith)预估控制算法相结合的控制策略，给出了基于液压盘式刹车的自动送钻智能控制策略，MATLAB的仿真实验证明该控制方式控制效果良好，各方面性能指标都达到理想要求。 本文最后针对模糊控制方法中量化因子与比例因子的整定问题，研究了基于各种性能指标的模糊整定方法，经过计算与实验，发现该方法切实可行，通过该方法整定好的各因子值使得模糊控制器的控制效果更佳。更多还原

【Abstract】 At present, the competition of oil industry is very fury, so reducing the cost of exploitation of oil is imperative under the situation. But the oil drillers of our country are relatively old, and the control mode drops behind, which result in the long period of making hole and high ratio of aiguille attaint, which is the main restrict factor of reducing the cost of oil exploitation. In addition, the unadvanced control mode easily lead to the accidents of sliding driller or blocking driller. For changing the unadvanced actuality of oil driller in our country , this paper describe the integral design of control system for oil driller.First this paper describes the composing and technics of drillers; Then the composing of control system based on s7-300PLC is described; Then thinking of such characteristics of oil driller as complexity and long delay, this paper brings forward the control strategy of combining the Fuzzy Control with Smith Estimate control algorithm, and sets down the way of Auto-driller based on discal hydraulic pressure brake. At last the experiment based on MATLAB by computer shows that the effect of this control mode is very good and all performance are famous.At last in this paper, a Fuzzy Tuning Method is put forward to make sure the proportion gene (Ke, Kec and Ku) of Fuzzy Logic Controller. Lots of experiments indicate that this Fuzzy Tuning Method is very efficiency .更多还原