Crystal grinding control method and system based on open-loop cross coupling iterative learning

• Main Authors: LI XUNGEN, XU XIAOLIANG, PAN MIAN, LYU SHUAISHUAI, YOU BIN, LI WENJUN
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2021
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PERFORMING OPERATIONS; PHYSICS; POLISHING; REGULATING; TRANSPORTING

The invention discloses crystal grinding control method and system based on open-loop cross coupling iterative learning. The crystal grinding control method based on open-loop cross coupling iterative learning comprises the following steps of, S10, establishing a mathematical model of a crystal grinding servo system; S20, establishing a discrete cross coupling iterative learning controller to control the position; S30, generating a new control signal; S40, obtaining a tracking error; and S50, compensating to each shaft through a contour error distribution model to eliminate the influence of each shaft on other shafts. 本发明公开了一种基于开环交叉耦合迭代学习的水晶研磨控制方法与系统。其中一种基于开环交叉耦合迭代学学习的水晶研磨控制方法，包括以下步骤：S10，建立水晶研磨伺服系统数学模型；S20，建立离散型交叉耦合迭代学习控制器对位置进行控制；S30，产生新的控制信号；S40，得到跟踪误差；S50，经过轮廓误差分配模型补偿到各轴以消除每个轴对其它轴的影响。