摘要
通过对现有煤矿皮带机采用的异步电机驱动结构、调速性能进行研究,针对驱动空间大,传动效率低,速度跟踪受系统模型影响较大等问题,提出一种新型的外转子永磁同步电机直驱结构,利用电机的外转子充当滚筒直接驱动皮带,省去了传统的减速机和滚筒装置,具有效率高,成本和维修量低等优势。并首次将无模型自适应控制应用到该系统的双闭环调速控制中,利用系统的输入输出数据在线估计伪偏导数、设计控制器,成功地实现了对电机给定转速的跟踪,从根本上消除了建模动态对控制系统的影响。通过MATLAB仿真,验证了改进控制算法在皮带机调速系统中良好的跟踪性和鲁棒性,与传统的PID控制相比,跟踪误差大大降低,调节时间明显缩短。
This paper studies the existing coal mine belt conveyor structure with asynchronous motor driving and its speed regulation performance. Aiming at the existing problem of driving space large, low transmission efficiency, speed tracking influenced by the system model, this paper proposes a new type of outer - rotor permanent magnet syn- chronous motor direct - drive structure. This structure replaces the traditional reducer and roller device, using exteri- or rotor acts as cylinder to drive belts directly, with high efficiency, low cost and maintenance advantages. The model - free adaptive control is applied to this double closed loop speed control system, the pseudo partial derivative is es- timated by using the system input and output data online, and the controller is designed, which realizes the tracking for a given speed successfully and eliminates the effects of unmodeled dynamics of the control system. The MATLAB simulation shows that the MFAC algorithm has good traceability and robustness in the speed control system of belt conveyor. Compared with the traditional PID control, the tracking error is greatly reduced, the regulating time is shortened significantly.
出处
《计算机仿真》
CSCD
北大核心
2014年第10期373-376,385,共5页
Computer Simulation
基金
河南省重点科技攻关项目(102102210197)
河南省高等学校矿山信息化重点学科开放实验室开放基金
河南理工大学博士基金项目(B2010-23)
