一种基于PLC的石油钻井井架起升控制系统设计  

PLC-based oil drilling derrick lifting control system

作　　者：杨雄[1] 何东升[1] 卢玲玲[1] 贾礼霆 杨杰[1] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]安徽省天然气开发股份有限公司,安徽合肥230000

出　　处：《广西大学学报（自然科学版）》2015年第5期1220-1228,共9页Journal of Guangxi University（Natural Science Edition）

基　　金：国家高科技发展计划(863计划)(2006AA09Z312);石油天然气装备教育部重点实验室建设项目(010861012)

摘　　要：针对传统石油钻机井架在起升过程中出现的因两侧液压缸伸缩不同步而导致的井架扭曲变形的问题,提出了一种基于PLC的井架控制系统设计。其基本思路是对两组液压缸分别采用位置传感器加电液比例阀构建闭环控制回路,回馈信号经PID控制器合理计算之后输出控制信号来调节电磁比例阀开度,以达到控制井架液压缸高精度同步伸缩的目的。文中详细描述了控制系统的基本原理,并在西南石油大学钻机起升综合实验平台上测试了控制系统,验证了控制系统的可靠性。To resolve the derrick distortion problem caused by the no-synchronous telescoping of hy- draulic cylinder on both sides during the lifting process of oil drilling derrick, a derrick design which is based on PLC control system is designed. The basic idea is to use an electrohydraulic proportional valve and a magnetic position sensor to construct a closed loop control. After receiving feedback sig- nals, the PID controller starts the precisely calculation then output control signals, which would ad- just the electromagnetism proportion valve opening. In that way, the high-precision of synchronous telescoping of hydraulic cylinder can be achieved. The basic principles of control system are elabora- ted in this paper. Besides, the control system has been tested in the comprehensive experiment plat- form for drilling rig hoisting in Southwest Petroleum University, which verifies the reliability.

关 键 词：电液比例阀 位置传感器 闭环控制 PID控制 

分 类 号：TP271.4[自动化与计算机技术—检测技术与自动化装置]