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Fast parameter self-setting method

A parameter self-tuning and fast technology, applied in the field of pattern recognition, can solve problems such as long time, and achieve the effect of eliminating the fallback time

Inactive Publication Date: 2006-04-26
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

thus making the time required for self-tuning very long

Method used

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Experimental program
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Embodiment Construction

[0019] Such as figure 2 As shown, let the system output target value be GV. Delineate an area near the target value, which is called the effective working area of ​​self-tuning, and set the distance from the target value to the boundary as m. Firstly, an excitation is added to the controlled system to make the system output close to the target value, and the system excitation becomes 0 before reaching the boundary of the set working area. The system output will continue to approach the setting work area due to inertia, and the system output peak value will enter the setting work area. When the system output reaches the peak value and falls back, the system will be stimulated again. At this time, the system output will continue to fall due to inertia. After a period of time, the system output reaches the valley point and starts to rise. After the system output reaches the valley point, continue to apply excitation until the system output reaches the specified increment of ζ ...

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Abstract

The invention relates to a fast parameter self-tuning method, which is characterized in that the control parameters of the controlled system can be quickly determined. The steps of the method are as follows: set the output of the controlled system at a specified target value, and divide a certain value near the target value. The upper and lower boundaries are called the self-tuning effective working area; add an excitation to the controlled system to make the system output the target value, and the system excitation becomes 0 before reaching the set lower boundary of the tuning working area; Add the second excitation signal when the output starts to fall after the first peak; continue to maintain the excitation signal after the system output reaches the valley point until the system output reaches the specified incremental value above the base value based on the valley point, the system excitation becomes 0 ;End the tuning process after the system output peaks for the second time. In the control of electric furnace equipment with large inertia and large lag, this method has obvious rapidity of self-tuning, and the control effect corresponding to the tuning parameters is also relatively good.

Description

technical field [0001] The invention relates to a method for industrial process control and pattern recognition of industrial control objects, especially a fast parameter self-tuning method for obtaining control parameters of slow-changing, large-inertia, and large-delay systems in industrial control objects. Background technique [0002] In industrial process control, especially in the control of slow-changing large inertial systems such as temperature, the model characteristics of the control object will vary with different objects and different working conditions. Manual determination of control parameters requires a good understanding of the system. How to automatically determine the appropriate control parameters for different control objects is a common topic in the industrial control instrument industry. In the design and production of control instruments, because the instruments are widely used and the control objects are different, it is generally impossible to pre-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B11/42G05B13/04
Inventor 蒋念平
Owner UNIV OF SHANGHAI FOR SCI & TECH