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Constant-temperature water bath control method based on feedforward feedback fuzzy self-tuning PID control algorithm

A control algorithm and feedforward feedback technology, applied in the electronic field, can solve problems such as difficult to meet control requirements

Inactive Publication Date: 2020-07-28
JINLING INST OF TECH
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  • Abstract
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Problems solved by technology

Most of the more common constant temperature water baths adopt PID control mode, and the constant temperature water bath monitoring system used for calibration is a difficult-to-control system with hysteresis and inertia characteristics. say, difficult to meet its control requirements

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  • Constant-temperature water bath control method based on feedforward feedback fuzzy self-tuning PID control algorithm
  • Constant-temperature water bath control method based on feedforward feedback fuzzy self-tuning PID control algorithm
  • Constant-temperature water bath control method based on feedforward feedback fuzzy self-tuning PID control algorithm

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0050] The invention provides a constant temperature water bath control method based on the feedforward feedback fuzzy self-tuning PID control algorithm, and applies the fuzzy PID control system to the constant temperature water bath monitoring system, which can improve the stability of the system, improve the dynamic performance of the system, and enhance the adjustment level of the system , Improving control efficiency, ensuring measurement quality, and saving energy are of great significance.

[0051] As a specific embodiment of the present invention, such as figure 1 As shown, two communication modes of RS-232 and RS-485 are used in the system communication aspect of the present invention.

[0052]The mathematical model of the constant temperature water bath monitoring system can accurately reflect the actual characteristics of its temperat...

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Abstract

The invention provides a constant-temperature water bath control method based on a feedforward feedback fuzzy self-tuning PID control algorithm. The constant-temperature water bath control method comprises the following specific steps: 1) measuring a temperature step curve of a constant-temperature water bath; 2) establishing a thermostatic water bath temperature mathematical model; and 3) performing controlling by adopting a fuzzy PID control algorithm. According to the invention, the fuzzy PID control system is applied to the constant-temperature water bath monitoring system, and has great significance in improving the stability of the system, improving the dynamic performance of the system, enhancing the adjustment level of the system, improving the control efficiency, ensuring the measurement quality and saving energy.

Description

technical field [0001] The invention belongs to the field of electronic technology, in particular to a constant temperature water bath control method based on a feedforward feedback fuzzy self-tuning PID control algorithm. Background technique [0002] At present, many temperature sensors are used in people's daily life and industrial production. Different types of temperature sensors have different application ranges and measurement accuracy. The measurement and calibration of temperature sensor accuracy is also an important development direction. At present, for the calibration of temperature sensors with a temperature range of 0°C-100°C, constant temperature water baths are most widely used. Most of the more common constant temperature water baths adopt PID control mode, and the constant temperature water bath monitoring system used for calibration is a difficult-to-control system with hysteresis and inertia characteristics. It is difficult to meet its control requiremen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/32
CPCG05D23/32
Inventor 吴敏姜玉东王晓璐钟磊莫飞扬
Owner JINLING INST OF TECH
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