中文摘要：

偏心机构定位的快速、稳定、精确是可控弯接头导向的关键技术之一。因此偏心机构驱动电机的快速启动和稳定性就显得非常重要。根据可控弯接头的特点,提出将PID控制技术应用到直流电机的控制中,从而获得最佳的过程响应曲线。在Simulink环境下,对直流电机和加入PID控制系统后的直流电机进行建模仿真,对比仿真结果表明,加入PID控制后,缩减了电机的震荡过渡时间实现了快速启动并能进入稳定状态,在PID控制的基础上调整上位机控制程序可消除导向调节误差。

英文摘要：

The fast, stable and accurate positioning of the eccentric mechanism is one of the key technologies in the controllable bent sub guiding, so the fast start and stability of eccentric mechanism′s electric motor is very important. According to thecharacteristics of the controllable bent sub, the PID control technology is applied to control of the DC motor so as to get thebest process response curves. In environment of the Simulink, modeling and simulation of DC motor and the DC motor thatadded with the PID control system are carried out, the simulation results show that after adding the PID control, the oscillationtransition time of the motor is reduced, and it could achieve the quick start and enter a steady state, the guidance error couldbe eliminated by adjusting the upper computer control program on the basis of the PID control.