论文中文题名: | 无轴传动控制器的研究 |
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学号: | 06214 |
保密级别: | 公开 |
学科代码: | 081102 |
学科名称: | 检测技术与自动化装置 |
学生类型: | 硕士 |
学位年度: | 2009 |
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专业: | |
第一导师姓名: | |
论文外文题名: | Study on the Controller of Shaftless Drives |
论文中文关键词: | 无轴传动 ; 同步控制 ; 串行通信 ; C8051F040 ; 离散递推增量式PID控制 |
论文外文关键词: | Shaftless driven ; Synchronized control ; C8051F040 ; Serial communication ; Discret |
论文中文摘要: |
无轴传动技术是一门新兴的、跨学科的综合型技术,是传动技术、控制技术、通信技术和机械技术的有机结合。无轴传动技术具有传动精度高、结构简单、传动比范围宽、调整方便等优点,因此可以代替传统的机械传动实现准确的传动关系。在印染、纺织、造纸、机械加工等要求实现多轴同步传动的领域,无轴传动技术有着广阔的应用前景。
本文对无轴传动技术进行了全面、深入与系统的研究和探讨,特别是无轴传动同步控制策略,具体分析了两种同步方式——主从式和平行式的同步结构,以及各自的优缺点、同步传动的误差精度等。并针对速度同步控制中可能出现的不同步问题,提出了采用速度差补偿的方法。从仿真结果可以看出,带速度补偿的同步控制策略,其同步跟随性能和抗扰性能均有提高。
文中介绍了无轴传动控制系统的总体设计方案、硬件电路、软件算法实现等,采用以微控制器C8051F040为核心的同步传动控制装置,用光电编码器作为电机转速或转子位置的测量元件,既能满足同步控制精度和系统稳定运行,又能与PC机实时通信,将实际速度值和控制参数及时反馈到上位机,界面友好,操作简便。控制算法采用目前在工业控制系统中广泛使用的离散递推增量式PID控制,并针对该算法的缺陷进行了算法改进。从主从电机的总体运行曲线上可以看出,系统的动态响应变快,稳定性提高。在实验室环境下对整套系统进行了调试,系统工作稳定,控制效果良好。
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论文外文摘要: |
Shaftless driven is a burgeoning, subject-bestraddled and synthesized technology, it's
a combination of transmission, automatic control communicationand mechanism technology. Shaftless driven is characterized by high precision, wide transmission ratio, predigested structure and flexibility. So mechanism transmission can be replaced by shaftless driven to realize exact transmission. Shaftless driven technology plays an important role and has capacious application foreground in printing, spinning and weaving, papermaking, mechanical processing, and other fields that need synchronized transmission.
The development, automatic control and application of shaftless driven technology were discussed comprehensively in this dissertation, especially the synchronized strategy. The structure, advantage and disadvantage, transmission precision of two synchronized modes: master-slaver mode and parallel mode. And aiming at the asynchronized problems from synchronized control of shaftless driven, compensation method using the difference between master speed and slaver speed was adopted. The simulation result indicated that there is increase in servoing performance and disturbance-resisting performance of synchronized control with compensation.
This paper introduced the shaftless driven control systerm’s overall project design, the hardware circuit, the software algorithm realizes and so on, synchronized driven control device with C8051F040 microcomputer as the core was adopted. The rotary encoder that is used as a motor rotor position or speed measurement tool. It is necessary to meet the synchronization control precision and stable operation, but also can carry on the real-time communication with computer, feeds back promptly the actual speed value and the control parameters to the host computer, user-friendly, easy to operate. The control algorithm adopts discrete recursive incremental PID control that is widely used in the industrial control system at present, and aimed at flaws of this algorithm to make the algorithm improvement. From the motors’ overall operation curve can be seen, the system faster dynamic response and more stable. In the experimental environment ,the entire system was debugged, the system working stably and control well.
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中图分类号: | TP273.5 |
开放日期: | 2010-03-29 |