摘要
针对加工中心高精度、微进给直线电机伺服系统的特点,首先设计了鲁棒补偿器补偿直线伺服系统低速时参数变化、摩擦扰动以及非线性等不确定因素。然后,对双直线同步驱动系统采用模糊协调同步控制策略。通过设计的两通道间模糊协调控制器的调节作用,进一步克服了双直线电机伺服系统位置输出的偏差,以实现同步的目的。仿真结果表明,所提出的这种复合同步控制策略具有较高的同步精度,鲁棒性强,可以满足对加工中心对低速时同步的要求。
For the characteristic of high precision micro-feed linear synchronous servo system（PM SLS）, robust compensation are designed for the linear motor systems with parameter variations, friction disturbance and no linearity at low speed. Then, a synchronization control strategy is presented based on fuzzy-coordinated control according to the double position synchronized drive of numerical control （NC） gantry-moving type milling machining centers. By the designed fuzzy-coordinated controller between the two synchro-driven passages, the output error between two synchro-driven systems is overcome. And the purpose of synchronization control could be realized. The simulation results show that the proposed scheme have both high synchronization accurate and strong robustness, and while low speed the demand of synchro-driven of NC machining centers can be satisfied.
出处
《组合机床与自动化加工技术》
2008年第12期55-58,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
辽宁省自然科学基金(20061019)
辽宁省教育厅(20060627)资助项目
关键词
数控机床
动态鲁棒
模糊协调
低速
同步控制
numerical machine tools
dynamic robust
fuzzy-coordinated
low speed
synchro-driven control
