Differential signal extraction method, apparatus and device

A differential signal and extraction method technology, applied in the direction of electric controllers, controllers with specific characteristics, etc., can solve the problems of integral control tracking steady-state deviation, low efficiency, difficult engineering applications, etc., to reduce differential phase lag , good differential characteristics, easy engineering application effect

Inactive Publication Date: 2019-01-04
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0002] The existing PID controller (Proportion Integration Differentiation. Proportion-integral-derivative controller) mainly has two problems. One is that the differential control has low efficiency of tracking the differential, and the other is that the integral control has low efficiency of tracking the steady-state deviation. high
In addition, some existing high-performance differentiators still have practical problems with complex structures, making it difficult to become the first choice for engineering applications.

Method used

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  • Differential signal extraction method, apparatus and device
  • Differential signal extraction method, apparatus and device
  • Differential signal extraction method, apparatus and device

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Embodiment Construction

[0038] 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.

[0039] This application designs a differential signal extraction method, which has a simple structure while providing good differential characteristics, and is easy to use in engineering.

[0040] The following is the first embodiment of the differential signal extraction method provided in this application. see figure 1 , figure 1 It is the method flowchart of ...

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Abstract

The embodiment of the invention discloses a differential signal extraction method, apparatus and device and a computer readable storage medium. The method comprises the steps of: dividing a low-pass filtering time constant by a preset value to obtain a first-order inertia time constant; performing preset value second-order inertia operation for input signals according to the first-order inertia time constant to obtain output signals with the number of preset values; solving an average value for the output signals with the number of preset values to obtain filter signals; and taking the input signals as a subtracted number, taking the filtering signals as a subtraction number, performing subtraction operation, and outputting a result. Compared to the prior art, the differential signal extraction method is simple in structure and easy for engineering utilization while providing good differential features.

Description

technical field [0001] The present application relates to the technical field of automatic control, in particular to a differential signal extraction method, device and equipment. Background technique [0002] The existing PID controller (Proportion Integration Differentiation. Proportion-integral-derivative controller) mainly has two problems. One is that the differential control has low efficiency of tracking the differential, and the other is that the integral control has low efficiency of tracking the steady-state deviation. high. In addition, some existing high-performance differentiators still have practical problems with complex structures, so it is difficult to become the first choice for engineering applications. Contents of the invention [0003] Embodiments of the present application provide a differential signal extraction method, device, and equipment, which can provide better low-pass filtering characteristics. [0004] In view of this, the first aspect of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 李军刘哲苏雷涛肖文彬
Owner GUANGDONG POWER GRID CO LTD
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