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DDS replacement cooking temperature control method of fuzzy fractional order PIDmu controller

A temperature control method and fuzzy controller technology, applied in the direction of temperature control, self-adaptive control, general control system, etc., using electric methods, can solve the problem that the temperature of the liquid medicine cannot accurately reflect the temperature of the cooking pot, etc., to improve the system self-efficacy Adaptability, strong anti-interference, good dynamic performance

Active Publication Date: 2019-03-12
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology

Since the cooking pot is a high-temperature, high-pressure airtight container, the temperature of the liquid medicine measured by installing a temperature transmitter in the circulating pipeline of the pot body cannot accurately reflect the temperature in the cooking pot

Method used

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  • DDS replacement cooking temperature control method of fuzzy fractional order PIDmu controller
  • DDS replacement cooking temperature control method of fuzzy fractional order PIDmu controller
  • DDS replacement cooking temperature control method of fuzzy fractional order PIDmu controller

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] Such as figure 1 figure 2 Shown: a fuzzy fractional order PID μ DDS displacement cooking temperature control method of controller, the method is fuzzy fractional order PID μ The controller 6 is the main controller of the temperature control system, and the proportional controller 7 is the secondary loop controller of the temperature control system. The main controller is composed of fuzzy controller and fractional order PID μ The composition of the controller; the fuzzy controller adjusts its output in real time according to the temperature deviation e and the deviation change rate ec, which are respectively used as fractional order PID μ Δkp, Δμ parameters required by the controller; in the process of DDS displacement cooking temperature control, fuzzy fractional order PID μ After subtracting the output of the controller 6 as the set value of the...

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Abstract

The invention provides a DDS replacement cooking temperature control method of a fuzzy fractional order PIDmu controller. The method includes the steps that the fuzzy fractional order PIDmu controllerserves as a main controller of a temperature control system, a proportional controller serves as an auxiliary loop controller of the temperature control system, and the main controller is composed ofa fuzzy controller and a fractional order PIDmu controller; the fuzzy controller adjusts the output of the fuzzy controller in real time according to the temperature deviation e and the deviation change rate ec, wherein the temperature deviation e and the deviation change rate ec serve as deltakp and deltamu parameters of the fractional order PIDmu controller respectively. According to the DDS replacement cooking temperature control method of the fuzzy fractional order PIDmu controller, the system response speed is high, the stability is good, and the method has good robustness for disturbance and can be effectively applied to the DDS replacement cooking temperature control system to improve the control effect.

Description

technical field [0001] The invention relates to the technical field of process control in the pulp and paper industry, in particular to fuzzy fractional-order PID μ The controller's DDS displacement cooking temperature control method. Background technique [0002] The paper industry is one of the ten pillar industries in my country, and its development level is one of the important symbols to measure the level of modernization and civilization of a country. With the development of economy and society, people's demand for high-quality paper continues to increase, which further increases the demand for high-quality chemical pulp. DDS displacement cooking technology is favored by major paper mills for its low energy consumption and high yield, and it is the first choice for old renovation and new construction projects in wood pulping in my country. The temperature change during the cooking process directly affects the final cooking quality, and the uniformity of the temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04G05D23/19
CPCG05B13/042G05D23/19
Inventor 李明辉杨星奎曹泽魏飞张鑫
Owner SHAANXI UNIV OF SCI & TECH
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