电磁调速采煤机闭环控制系统参数辨识研究

发布时间：2018-11-11 16:35

【摘要】：针对电磁调速采煤机存在闭环PID,控制参数调整效率低,调试困难,从而影响采煤机工作性能的问题,进行了控制系统参数辨识技术研究。为高效调整电磁调速采煤机PID控制参数,使电磁调速采煤机在实际运行时达到预期的性能需求,提出了一种基于继电反馈自整定的电磁调速采煤机系统参数辨识方法,引入继电串级反馈控制,分别对速度外环和电流内环的控制参数在线优化,其更新控制器参数是在系统的稳定工作点附近,并且是在闭环的运行过程中完成的,可自动测定等幅振荡周期,缩短了调整时间,不影响正常的工作过程,系统不需要断电重启,有利于自适应参数电磁调速采煤机闭环控制系统的连续更新运行。仿真和试验结果验证了该方法的辨识参数结果的有效性,改善了控制系统的抗干扰能力。
[Abstract]:Aiming at the low adjustment efficiency of closed-loop PID, control parameters and the difficulty of debugging, which affect the performance of the shearer, the parameter identification technology of the control system is studied. In order to adjust the PID control parameters of the electromagnetic speed governing shearer and make the electromagnetic speed regulating shearer achieve the expected performance requirement in actual operation, a method of parameter identification of electromagnetic speed regulating shearer system based on relaying feedback self-tuning is put forward. By introducing relay cascade feedback control, the control parameters of speed outer loop and current inner loop are optimized on line respectively. The updated controller parameters are near the stable working point of the system and are completed in the process of closed-loop operation. The period of constant amplitude oscillation can be measured automatically, the adjustment time is shortened, the normal working process is not affected, and the system does not need to be restarted, which is advantageous to the continuous updating of the closed-loop control system of the self-adaptive parameter electromagnetic speed regulating shearer. The simulation and experimental results show the effectiveness of the method and improve the anti-jamming ability of the control system.
【作者单位】：中国矿业大学(北京)机电与信息工程学院;邯郸职业技术学院;
【基金】：河北省科学技术厅资助项目(12213512D)
【分类号】：TD632.1

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