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针对传统多线切割机手动绕线效率低的缺陷,增加自动绕线机构.详细分析了机械结构和功能改变后的控制系统,根据其特点建立了线速度同步和角速度同步的统一模型.对现有同步控制算法进行改进,增加单轴电机转速误差的微分,提出了一种并联差分耦合同步控制策略,并对其有效性进行证明.通过与传统的主从同步控制的对比试验证明,并联差分耦合同步控制算法具有控制精度高、轴间误差小的优点.
Aiming at the defect of low efficiency of traditional multi-wire cutting machine manual winding, an automatic winding mechanism is added.Analyzed in detail the control system after the change of mechanical structure and function, the uniform model of linear speed synchronization and angular speed synchronization is established according to its characteristics. A synchronous control algorithm is improved to increase the differential of the speed error of a single-axis motor, and a parallel differential coupled synchronous control strategy is proposed and its validity is proved. By comparing with the traditional master-slave synchronous control, it is proved that the parallel differential The coupled synchronous control algorithm has the advantages of high control accuracy and small error between axes.