Adjustable advanced observation device

An observation device and adjustable technology, applied in the direction of electric controllers, controllers with specific characteristics, etc., can solve the problems of low efficiency of low-order observers, low ratio of leading phase peak to gain peak, and low leading phase peak value, etc. , to achieve the effect of adjustable lead phase peak value, high lead phase peak value and high ratio

Active Publication Date: 2019-06-25
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides an adjustable advance observation device, which solves the low efficiency of the existing low-order observer, that is, the peak value of the advance phase is low, and the advance Technical issue with low ratio of phase peak to gain peak

Method used

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Embodiment Construction

[0043] In order to enable those skilled in the art to better understand the solution of the application, the technical solution in the application will be clearly and completely described below in conjunction with the accompanying drawings in the application. Obviously, the described embodiment is only a part of the application Examples, not all examples. 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.

[0044] The efficiency of existing low-order observers is low, that is, their leading phase peaks are low, and the ratio of leading phase peaks to gain peaks is low. For this reason, the application proposes an adjustable advance observation device, which has the advantages of high peak value of the leading phase, adjustable leading phase peak value, and high ratio of the leading phase peak value to the gain peak value.

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Abstract

The present invention discloses an adjustable advanced observation device. The device comprises a subtractor, a high-gain proportion-integral controller, an inertia combination filter, a first-order inertia filter, a first proportion unit, a second proportion unit and an addition unit. The adjustable advanced observation device can solve the technical problems that a current low-order observationdevice is low in efficiency, namely low in the advanced phase peak, and low in the ratio of the advanced phase peak and the gain peak.

Description

technical field [0001] The present application relates to the technical field of automatic control, in particular to an adjustable advance observation device. Background technique [0002] The advance information of process response can be obtained by using advanced observation, which is of great significance for improving the performance of process control. There are many forms of advance observation, such as differentiator, inertial inverse model (Inertial inverse model, SOIIM), proportional-differential (Proportion-Differentiation, PD) controller and so on. [0003] In control practice, there are mainly two types of hysteresis, inertial hysteresis and pure hysteresis. The current advanced observation is mainly for inertial lag, for example, the inertial inverse model can realize advanced observation for inertial lag. In control practice, high-order inertial processes are ubiquitous. Ideally, the high-order inertial inverse model can observe the input of the high-order ...

Claims

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Application Information

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