An improved digital pid controller and its construction method

A construction method and controller technology, applied in the field of PID control, can solve problems such as the inability to achieve precise control of the system, and achieve the effect of simple debugging process, reduced overshoot, and good system stability

Active Publication Date: 2022-04-08
HEBEI HANGUANG HEAVY IND
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Problems solved by technology

[0003] The digital PID controller has the characteristics of stable transmission, strong anti-interference ability, stable signal-to-noise ratio, and small nonlinear distortion. It is widely used in servo control systems. However, conventional PID can achieve rough adjustment of the system, but cannot achieve precise control of the system. , it is necessary to improve the conventional digital PID controller

Method used

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  • An improved digital pid controller and its construction method
  • An improved digital pid controller and its construction method
  • An improved digital pid controller and its construction method

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Embodiment Construction

[0041] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0042] The invention provides an improved digital PID controller and its construction method, which is an improved double-closed-loop all-digital PID controller, which can be applied to search and imaging systems, and can be controlled under the premise of ensuring the control accuracy and stability of the servo control system. Effectively improve the tracking accuracy of the system and reduce the overshoot of the system.

[0043] The present invention adopts such as Figure 5 The shown double closed-loop feedback loop realizes the PID control of the system. Firstly, for the controlled system, the non-feedback PID control algorithm is used to control the controlled system; then a proportional and integral link is added to the integral and differential link in the PID control loop, and a proportional integral link is added to the PID control loop. Negativ...

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Abstract

The invention discloses an improved digital PID controller and a construction method thereof. On the basis of the traditional PID controller, the present invention adopts a double closed-loop mode, can effectively improve the tracking precision of the system and reduce the overshoot of the system on the basis of ensuring the stable precision and stability of the system. It has the characteristics of high control precision, good system stability, and low system overshoot, and does not increase debugging parameters, and the debugging process is simple and reliable.

Description

technical field [0001] The invention relates to the technical field of PID control, in particular to an improved digital PID controller and a construction method thereof. Background technique [0002] With the continuous development of guidance technology, the requirements for the hit rate of missiles are getting higher and higher, and higher requirements are put forward for the guidance accuracy of the seeker. It is required that the servo platform can improve tracking accuracy and reduce overshoot, so as to achieve precise strike targets the goal of. [0003] The digital PID controller has the characteristics of stable transmission, strong anti-interference ability, stable signal-to-noise ratio, and small nonlinear distortion. It is widely used in servo control systems. However, conventional PID can achieve rough adjustment of the system, but cannot achieve precise control of the system. , need to improve the conventional digital PID controller. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 周腊梅崔雪兵
Owner HEBEI HANGUANG HEAVY IND
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