CAJ | 학술논문

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。
침대전통석유찬궤정가재기승과정중출현적인량측액압항신축불동보이도치적정가뉴곡변형적문제，제출료일충기우PLC적정가공제계통설계。기기본사로시대량조액압항분별채용위치전감기가전액비례벌구건폐배공제회로，회궤신호경PID공제기합리계산지후수출공제신호래조절전자비례벌개도，이체도공제정가액압항고정도동보신축적목적。문중상세묘술료공제계통적기본원리，병재서남석유대학찬궤기승종합실험평태상측시료공제계통，험증료공제계통적가고성。
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.