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AGC and LPC comprehensive control system mould establishing method based on incremental method

A technology of comprehensive control and system modeling, applied in general control systems, control/regulation systems, adaptive control, etc., can solve problems such as inaccurate parameter models

Inactive Publication Date: 2007-10-10
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a method for modeling AGC and LPC integrated control systems based on the incremental method, so that it can use the incremental method to eliminate the inaccurate problem of the parameter model caused by the nonlinear characteristics of the model equation , so that the output accuracy of the simulation platform reaches a limited range

Method used

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  • AGC and LPC comprehensive control system mould establishing method based on incremental method
  • AGC and LPC comprehensive control system mould establishing method based on incremental method
  • AGC and LPC comprehensive control system mould establishing method based on incremental method

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Embodiment Construction

[0032] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0033] As shown in Figure 2, in the actual hot continuous rolling system, the looper is used to control and adjust the strip speed and tension between different stands, that is to say, there is a strong mechanical coupling between the AGC system and the looper system The effect cannot be ignored in the actual simulation research. As shown in Figure 1, the block diagram of the control increment method coupled with the two racks and the looper system, the establishment of the AGC / LPC integrated control system model is mainly divided into three parts: AGC subsystem, LPC subsystem, AGC...

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Abstract

A modeling method of AGC and LPC integrated control system based on incremental manner includes setting up model of AGC subsystem, setting up model of LPC subsystem, setting up interface between AGC subsystem and LPC subsystem, obtaining relation of forward and backward slide variables to band steel front-back tensile force and steel band inlet-outlet speed by incremental manner relational expression then back-calculating out speed variation of steel band inlet-outlet.

Description

technical field [0001] The invention relates to a method in the technical field of industrial control, in particular to a method for modeling an AGC / LPC (AGC is a thickness control system, and LPC is a looper control system) comprehensive control system based on an incremental method . Background technique [0002] The hot continuous rolling becomes a whole due to the connection of the strip steel. There is a coupling phenomenon between the thickness of the strip steel plate controlled by the AGC system and the second flow rate and tension controlled by the looper, as well as between each frame. In less demanding conventional controls, this interaction is neglected. With the change of rolling mill pressing system from electric to hydraulic and the increasing requirements of users, the mutual influence between AGC system and looper system can no longer be ignored and has become the key to further improve product quality. It is imperative to study AGC-looper integrated contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 王景成李国良王小英
Owner SHANGHAI JIAO TONG UNIV
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