Contour outline control method for complicated track

A contour control and trajectory technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of reducing contour performance, limiting the scope of application, and difficult to find implicit expressions.
CN100562823CInactive Publication Date: 2009-11-25JINAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
JINAN UNIVERSITY
Publication Date
2009-11-25
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a contour control method for complex trajectories. The method combines a cross-coupling control frame with contour error pre-compensation function to establish an adaptive data model for each axis participating in the servo motion, according to the current target position point and several The historical position point value is used to determine the parameters of the servo controlled object to be identified, and the control parameters are adjusted in real time through the pole configuration algorithm. This method of adjusting the current control output according to the historical control quantity and the future control quantity effectively suppresses the disturbance of the bounded process and improves the precision of the contour control and the stability of the process.
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Description

technical field

[0001] The invention relates to a contour control method, in particular to a complex trajectory contour control method. Background technique

[0002] There are two main methods to improve the trajectory motion accuracy: 1. By improving the tracking control performance of each single-axis trajectory servo, indirectly reducing the trajectory profile error after the synthesis of each axis; 2. By coordinating the dynamics of each single-axis servo, Aiming at improving the control performance of the plane track profile, taking into account the dynamic characteristics of the single-axis servo, the error of the two-axis plane track profile can be directly reduced.

[0003] Contour control in the general sense is to provide additional contour error information to each axis by sharing information between each servo axis without changing the single-axis servo control structure, that is, to achieve trajectory tracking. closed-loop control. The reason for not using the...

Claims

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