Corrected PID temperature control method

A temperature control method and controller technology, applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., can solve problems such as overshoot and temperature reverse regulation, and achieve convenient maintenance and use, cost reduction, and reliability. good readability

Pending Publication Date: 2022-04-12
WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present application provides a modified PID temperature control method to solve the problems of oversh

Method used

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  • Corrected PID temperature control method
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  • Corrected PID temperature control method

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0094] Example 1

[0095] See figure 2 As shown, the present application provides a corrected PID temperature control method, which is applied to the above-described PID temperature control system, including:

[0096] S1, set the target temperature value T 0 , Obtain real-time temperature value T by temperature sensor T (k) ;

[0097] S2, based on the PID algorithm formula (1) calculate the calculation result of the K time PID controller PIDOUT (k) .

[0098] The PID algorithm formula (1) is as follows:

[0099]

[0100] in,

[0101] K p For the proportional coefficient, the data modeling is calculated or obtained in accordance with the experimental method;

[0102] K i For the integral coefficient, the data modeling is calculated or obtained according to the experimental method;

[0103] e (k) The deviation of the target temperature value and real-time temperature value of the k hour;

[0104] A is inhibiting parameters.

[0105] The setting of the suppression parameter A is as...

Example Embodiment

[0129] Example 2

[0130] See image 3 As shown, the present application embodiment provides a corrected PID temperature control method, which is applied to the above-described PID temperature control system, which includes:

[0131] S1, set the target temperature value T 0 , Obtain real-time temperature value T by temperature sensor T (k) ;

[0132] S2, according to the PID algorithm formula (2) calculate the calculation result of the PID controller PIDOUT (k) .

[0133] The PID algorithm formula is as follows:

[0134]

[0135] in,

[0136] K p For the proportional coefficient, the data modeling is calculated or obtained in accordance with the experimental method;

[0137] K i For the integral coefficient, the data modeling is calculated or obtained according to the experimental method;

[0138] e (k) The deviation of the target temperature value and real-time temperature value of the k hour;

[0139] A is inhibiting parameters, according to deviation E (k) And the status of th...

Example Embodiment

[0167] Example 3

[0168] The present application also provides a corrected PID temperature control method, which is applied to the above-described PID temperature control system, which is comprising:

[0169] Set the target temperature value T 0 , Obtain real-time temperature value T by temperature sensor T (k) ;

[0170] Calculate the calculation result of the K time PID controller according to PID algorithm (1) PIDOUT (k) The formula is as follows:

[0171]

[0172] in,

[0173] K p For the proportional coefficient, the data modeling is calculated or obtained in accordance with the experimental method;

[0174] K i For the integral coefficient, the data modeling is calculated or obtained according to the experimental method;

[0175] e (k) The deviation of the target temperature value and real-time temperature value of the k hour;

[0176] A is inhibiting parameters.

[0177] Among them, according to deviation E (k) And the status of the PID control cycle, set the value of the ...

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Abstract

The invention provides a modified PID temperature control method, which is applied to a PID temperature control system, and comprises the following steps: setting a target temperature value t0, and obtaining a real-time temperature value t (k) through a temperature sensor; and calculating a calculation result PidOut (k) of the PID controller at the moment k according to a formula. The problems of overshoot and temperature reverse adjustment caused by large time lag and large inertia of an existing PID temperature control method are solved, it is guaranteed that the temperature rapidly reaches the target temperature, the algorithm is not complex, maintenance and use are convenient, and the cost of a PID controller is reduced.

Description

technical field [0001] The application belongs to the technical field of automatic control, and in particular relates to a modified PID temperature control method. Background technique [0002] Temperature control system plays an important role in related industrial production and is widely used in oil refining, metallurgy, electronics, chemical industry and other industries. It is an important topic in the field of automatic control. The temperature control algorithm generally adopts the PID algorithm to realize the control of the system. The so-called PID control is to control according to the proportion of the deviation between the set value and the measured value, the accumulation of the deviation and the trend of the deviation change. However, conventional PID is difficult to cope with the characteristics of large time lag and large inertia in the temperature control process, which will lead to low control accuracy and make the system difficult to stabilize, especially...

Claims

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Application Information

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IPC IPC(8): G05D23/20
Inventor 陈贤辉郑铎施建宏闫大鹏
Owner WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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