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A similar integral method and apparatus

An integration method and integration device technology, applied in the direction of instruments, electrical digital data processing, digital data processing components, etc., can solve the problem of low efficiency of tracking input constant value disturbance, achieve output speed and output efficiency improvement, improve efficiency, The effect of eliminating steady-state deviation

Active Publication Date: 2019-02-22
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For a long time, the reason why PID control has been difficult to be fully surpassed is that there is an invisible serious defect in PID, that is, there is a problem in PID that the conventional integral (Integration, I) control tracking input constant value disturbance is not efficient.

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  • A similar integral method and apparatus
  • A similar integral method and apparatus
  • A similar integral method and apparatus

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Embodiment Construction

[0033] Conventional integrators in existing PID control such as figure 1 As shown, a first-order inertial filter is used in the conventional integrator, but the first-order inertial filter has the problems of slow output speed and low output efficiency.

[0034] The embodiment of the present application provides a similar integral method and device, which is used to replace the conventional integral control in PID, which can effectively improve the efficiency of tracking input constant disturbance, and achieve the purpose of improving the performance of PID control.

[0035] 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...

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Abstract

The application discloses a similar integral method and apparatus, wherein the method includes 101 carrying out the adding operation on a process signal of a current step size and a similarly integrated output signal of a previous step size to obtain an addtion signal of the current step size; 102 filtering that addition signal of the current step size by a sliding window to obtain a similar integrate output signal of the current step size; 103 after the similar integrated output signal of the current step size is taken as the similar integrated output signal of the previous step size, returning to the step 101 to calculate the similar integrated output signal of the next step size. In the present application, the sliding window filter is used to replace the first-order inertial filter used in constructing the conventional integrator when performing the integration operation, so that the output speed and the output efficiency are remarkably improved during the calculation, and the efficiency of tracking the constant value disturbance of the input is further improved.

Description

technical field [0001] The present application belongs to the technical field of process control, and in particular relates to a similar integration method and device. Background technique [0002] PID (Proportion integration differentiation) control technology is a preferred basic control technology in the field of industrial process control, but this does not mean that PID control can better meet the actual requirements of control. This is actually a helpless choice, because there is no more Good choice. For a long time, people have been exploring to find a method that can completely surpass PID control. Unfortunately, so far, any method that attempts to challenge the basic control position of PID has not yet gained an advantage. For a long time, the reason why PID control has been difficult to be fully surpassed is that there is an invisible and serious defect in PID, that is, there is a problem in PID that the conventional integral (Integration, I) control is not effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/544
CPCG06F7/5446
Inventor 李军
Owner GUANGDONG POWER GRID CO LTD
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