Execution mechanism state detection method and device

A technology of actuator and state detection, which is applied in the direction of measuring devices, machine/structural component testing, knowledge expression, etc., can solve problems such as difficult fault diagnosis and unobvious fault performance, and achieve the effect of effective actuator state

Pending Publication Date: 2021-08-24
BEIJING GUODIAN ZHISHEN CONTROL TONGDY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the closed-loop control system, the fault of the actuator is often covered by the feedback control effect, so that the fault performance is not obvious
In addition, the actuator itself often has serious nonlinear characteristics. Compared with other control system faults, the fault diagnosis of the actuator is more difficult.

Method used

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  • Execution mechanism state detection method and device
  • Execution mechanism state detection method and device
  • Execution mechanism state detection method and device

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Embodiment Construction

[0049] The application describes a number of embodiments, but the description is illustrative rather than restrictive, and it will be obvious to those of ordinary skill in the art that within the scope of the embodiments described in the application, There are many more embodiments and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Except where expressly limited, any feature or element of any embodiment may be used in combination with, or substituted for, any other feature or element of any other embodiment.

[0050] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the clai...

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Abstract

The embodiment of the invention discloses an execution mechanism state detection method and device. The method comprises the steps of obtaining operation parameters of an execution mechanism, wherein the operation parameters comprise liquid flow information, a control instruction of the execution mechanism and feedback information about the control instruction; inputting the operation parameters into a preset logic judgment knowledge base, wherein the logic judgment knowledge base comprises one or more judgment logics used for judging whether the executing mechanism fails or not, and each judgment logic is used for judging the failure of one executing mechanism; and judging the operation parameters through each judgment logic in the logic judgment knowledge base so as to determine the current state of the execution mechanism according to the judgment result of each judgment logic. According to the scheme of the embodiment, the state of the executing mechanism is effectively monitored, problems are found in time, and effective operation of the executing mechanism is kept all the time.

Description

technical field [0001] This article relates to industrial equipment control technology, especially a method and device for detecting the state of an actuator. Background technique [0002] Through the continuous development of various technologies, the automation level of thermal power generating units in my country is getting higher and higher, and machinery or automation equipment can be seen everywhere. The actuator is the bridge between the control system and the mechanical movement of the valve, and it is the main mechanism for the operation of the thermal power plant. Nowadays, the safety production requirements of thermal power plants are becoming increasingly strict, and the intelligent level of production links and basic equipment is constantly improving. To ensure efficient control, the "health" of the actuator is critical. [0003] In the thermal power plant control system, according to the location of the fault, the faults of the control system can be divided i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/00G06Q50/06G06N5/02G01M99/00
CPCG06Q10/0639G06Q10/20G06Q50/06G06N5/022G01M99/005
Inventor 朱子凡王中胜张东明安凤栓田彬杜伟齐祥柏陈思远
Owner BEIJING GUODIAN ZHISHEN CONTROL TONGDY
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