三维多层仿形织造过程多机协同智能控制技术

Multi-machine Cooperative Intelligent Control Technology for Three-dimensional Multi-layer Profiling Weaving Process

摘要:

三维多层仿形织造过程多机同步协同控制是其关键技术之一。本文通过对三维多层仿形织造工艺技术的研究,依据磁场磁链定向控制作用机理,提出了一种对磁场磁链定向和变力矩控制的方法,来分别对多个感应电动机进行速度和力矩跟踪智能控制。依据控制方法,通过建立全维转子状态估计器,来辨识感应电动机的转子速度、定子和转子电阻、瞬时外负载等参数。由外负载辨识结果与速度、力矩PID控制器来确定感应电动机的转矩电流,实现感应电动机速度与力矩控制。仿真实验与三维多层仿形织造工程试验结果表明了该智能控制方法的先进性和实用性。

Abstract:

Synchronized and cooperative control of multi-machine in three-dimensional multi-layer profiling weaving process is one of the key technologies. Based on the research of three-dimensional multi-layer profiling weaving technology and the mechanism of magnetic flux orientation control, this paper presents a method of magnetic flux orientation and variable torque control to track speed and torque of multiple induction motors respectively. According to this control method, the rotor speed, stator and rotor resistance, instantaneous external load and other parameters of induction motor are identified by establishing a full-dimensional rotor state estimator. The torque current of induction motor is determined by the identification result of external load and the speed and torque PID controller, and the speed and torque control of induction motor is realized. The results of simulation experiment and three-dimensional multi-layer profiling weaving engineering test show that the intelligent control method is advanced and practical.