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

An iterative learning and cross-coupling technology, which is applied in the field of crystal grinding control, can solve the problems that cannot fully adapt to the servo system of the high dynamic performance speed control system, and achieve the effect of improving the contour tracking ability, improving the tracking performance and reducing the contour error

Active Publication Date: 2021-04-02
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Because the mathematical model of permanent magnet synchronous motor is a nonlinear, strongly coupled multivariable system, it cannot fully adapt to high dynamic performance speed control systems or servo systems

Method used

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

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Experimental program
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Embodiment 1

[0054] For the above contour grinding control system based on discrete cross-coupling iterative learning, see figure 2 , which is a flow chart showing the steps of the method for contour grinding control based on discrete cross-coupling iterative learning according to an embodiment of the present invention, including the following steps:

[0055] S10, establishing a mathematical model of the crystal grinding servo system;

[0056] S20, establishing a discrete closed-loop cross-coupling iterative learning controller to control the position;

[0057] S30, the discrete closed-loop iterative learning controller generates a new control signal;

[0058] S40, the controller obtains a new tracking error according to the expected position information and the actual information;

[0059] S50, distribute model compensation to each axis through the contour error to eliminate the influence of each axis on other axes.

[0060] In specific implementation, S10 includes the following steps...

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PUM

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Abstract

The invention discloses a crystal grinding control method and system based on closed-loop cross coupling iterative learning. The method comprises the following steps: S10, establishing a mathematicalmodel of a crystal grinding servo system; S20, establishing a discrete closed-loop cross coupling iterative learning controller to control the position; S30, generating a new control signal by a discrete closed-loop iterative learning controller; S40, acquiring a new tracking error according to the expected position information and the actual information by the controller; and S50, compensating each shaft through a contour error distribution model to eliminate the influence of each shaft on other shafts.

Description

technical field [0001] The invention belongs to the technical field of servo control, and in particular relates to a crystal grinding control method and system based on closed-loop cross-coupling iterative learning. Background technique [0002] With the development of science and technology and industry, grinding is developing towards high speed, high precision and high productivity. Glass processing is also developing towards CNC mechanization, but due to the particularity of glass materials, edge wear and surface smoothness are all issues that need to be considered during processing. In the fields of CNC machining, robot control and high-precision machining, permanent magnet synchronous motors have extremely important applications. Because the mathematical model of permanent magnet synchronous motor is a nonlinear, strongly coupled multi-variable system, it cannot fully adapt to the speed control system or servo system with high dynamic performance. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/04Y02P70/10
Inventor 李训根吕帅帅潘勉李文钧游彬徐小良
Owner HANGZHOU DIANZI UNIV
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