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Integrated signal extraction method, device and equipment

A technology of integrating signals and extracting methods, applied in electric controllers, controllers with specific characteristics, etc., can solve problems such as low efficiency, tracking steady-state deviation, etc., achieve high output speed, improve low-frequency gain, and improve frequency domain. Effect of Phase Stability Margin

Active Publication Date: 2019-01-25
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0004] In PID, conventional integral control has the problem of inefficient tracking of steady-state deviation

Method used

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  • Integrated signal extraction method, device and equipment
  • Integrated signal extraction method, device and equipment
  • Integrated signal extraction method, device and equipment

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0041] This application designs an integral signal extraction method, which effectively improves the efficiency of integral control tracking steady-state deviation, and is easy to apply in engineering.

[0042] The following is the first embodiment of the integrated signal extraction method provided in this application. see figure 1 , figure 1 It is the method f...

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Abstract

An embodiment of the invention discloses an integrated signal extraction method, an integrated signal extraction device, integrated signal extraction equipment, and a computer readable storage medium.The integrated signal extraction method comprises the steps of: S1, dividing a low-pass filtering time constant by a preset value to obtain a first order inertia time constant; S2, performing first order inertia operation on an input signal for the preset value number of times according to the first order inertia time constant, so as to obtain a preset value number of output signals; S3, averaging the preset value number of output signals to obtain a filtered signal, and outputting the filtered signal; S4, and performing additive operation on the input signal and the filtered signal, regarding a result of the operation as an input signal, and returning to the step S2. Compared with the prior art, the integrated signal extraction method provided by the invention effectively improves the efficiency of steady state deviation tracking of integral control, and is easy in engineering application.

Description

technical field [0001] The present application relates to the technical field of automatic control, in particular to an integral signal extraction method, device and equipment. Background technique [0002] PID (Proportion integration differentiation) control technology is widely used in the field of process control. PID is mainly suitable for some constant value control systems, that is, the process is given constant. In some follow-up control systems, the process setting needs to change frequently, and the characteristics of follow-up control fully expose the shortcomings of PID control, such as the poor performance of process output tracking process setting. [0003] In order to be able to solve the deficiency of PID control, some new understanding of PID control is needed. From the perspective of observation, the proportional (Proportion, P) control in PID is a kind of current disturbance observer (Now disturbance observer, NDO), which can eliminate the current disturba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 李军
Owner GUANGDONG POWER GRID CO LTD
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