节点文献

翻车机转速优化控制设计

Design of Speed Optimization Control in Car Dumper

【作者】 王立

【导师】 郑德忠; 叶大茂;

【作者基本信息】 燕山大学 , 仪器仪表工程, 2012, 硕士

【摘要】 翻车机系统是火电、化工、冶炼、矿山以及物流港口等行业不可替代的物料运输设备,为我国经济建设做出了重大贡献。由于其机械结构庞大、承重能力强、低速运转、频繁启、制动等特点,因此翻车机大多采用的是双电机同步驱动系统。近年来,多电机同步控制已成为国内外热点研究问题之一。本文以翻车机为研究对象,分别针对其单通道机驱动电机转速控制以及双电机的同步控制查阅了国内外的大量文献。根据翻车机系统国内外的发展现状以及诸多的国内外先进的智能控制算法及其在多电机同步控制中的应用研究,开展了翻车机同步控制先进控制算法的研究,具体工作如下:从三车翻车机的工作原理出发,根据翻车机工作所需要的最大驱动力以及驱动功率,选取了驱动电机的参数。应用了永磁同步电动机作为翻车机系统的驱动电机,在特定驱动系统的条件下,应用了3/2变换原理将ABC三相坐标系下的模型转变成d-q两相坐标系下的模型。设计了翻车机双电机驱动系统。先对单通道电机控制算法进行研究,由于PID控制算法在自适应性上的不足,引入了径向基函数神经网络对其3个控制参数进行在线整定,并且对径向基函数神经网络的结构以及将两者结合后的新控制算法进行了分析。为了提高上述结合算法的实时快速性,研究了一种新的广义预测控制算法,建立了永磁同步电机的CARIMA模型,并且利用MATLAB软件进行仿真,验证了基于广义预测控制器的翻车机单通道转速控制系统的优越性,最后对两台电机之间的同步误差采用了模糊径向基函数神经网络的控制方法,将其值在0的上下波动,确保两台驱动电机的一致性,从而保证翻车机系统可以长期稳定可靠的作业。最后,应用MATLAB软件中的GUIDE(图像用户开发环境)在Windows XP系统下,建立了翻车机转速控制仿真界面,实现控制可视化。通过仿真界面,验证了本文设计的控制系统的可行性。

【Abstract】 Now car dumper has become the material transportation equipment any other can bereplaced in thermal power, chemical industry, metallurgical industry, mining, logisticsports and so on. And it makes a significant contribution to Chinese economic construction.Due to it has some special characteristics such as huge mechanical structure, load bearingcapacity, low-speed operation, moving and braking very frequently etc., driving the cardumper must use a dual-motor synchronization control system. Recently, the multi-motorsynchronization control is becoming one of the top research issues at home and abroadgradually.This paper selects car dumper as the study object, and a plenty of literature onsingle-channel machine drive motor speed control and dual-motor synchronization controlat home and abroad are searched. According to the development of car dumper system athome and abroad,this paper cites a number of domestic and foreign advanced intelligentcontrol algorithm and its application in motor control and multi-motor synchronouscontrol.Starts with the work process of three-car dumper, according to the maximum drivingforce and driving power when car dumper works normally, the driving motor parametersare selected correctly. This paper uses the PMSM as the driving motor of car dumpersystem. Moreover, the model in the ABC three-phase coordinate system is converted intothat in the d-q two-phase coordinate system by 3/2 transformation principle.This paper designs the dual-motors car dumper driving system. First it makes oneresearch on single-channel motor control algorithm. Due to the PID control algorithm is inthe lack of adaptability, radial basis function neural network is introduced in order to tuneits three control parameters on line. Moreover,this paper analyzes the structure of radialbasis function neural network and the new control algorithm which combines the twoones.In order to improve the real-time rapid character of combined algorithm above, thispaper makes one research on a new generalized predictive control algorithm,and theestablishes the CARIMA model of a permanent magnet synchronous motor. Then simulates the algorithm by MATLAB. It proves that the single-chanel speed control of cardumper GPC is the best method. At last, the synchronization errors between the twomotors is controlled by fuzzy radial basis function neural network control methods. Thevalue of fluctuations is restricted in the range of up or down to 0, in order to ensure theconsistency of the two drive motors and the dumper systems can be long-term stable andreliable operations.In the end, in Windows XP platform, the simulation interface of car dumper speedcontrol is established using GUIDE of MATLAB software, it makes the process of controlvisible. Over the simulation interface, it proves the control system design above isfeasible.

  • 【网络出版投稿人】 燕山大学
  • 【网络出版年期】2012年 08期
节点文献中: