Fault detection method for gas turbine sensors and actuators based on cross-validation

A sensor failure and actuator technology, applied in the direction of internal combustion engine testing, complex mathematical operations, etc., to achieve the effect of ensuring normal operation and availability

Active Publication Date: 2022-08-05
HARBIN INST OF TECH +2
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of how to realize the sensitive detection and isolation of actuator and sensor faults during the state monitoring process of gas turbines. The present invention provides a gas turbine sensor and actuator fault detection method based on cross-validation

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  • Fault detection method for gas turbine sensors and actuators based on cross-validation
  • Fault detection method for gas turbine sensors and actuators based on cross-validation
  • Fault detection method for gas turbine sensors and actuators based on cross-validation

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Embodiment Construction

[0073] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0074] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0075] see figure 1 and figure 2 , describe this embodiment, the cross-validation-based gas turbine sensor and actuator fault detection method described in this embodiment, the method includes the following steps:

[0076] S1. After the fault occurs, the first fault...

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Abstract

A method for detecting faults of gas turbine sensors and actuators based on cross-validation belongs to the technical field of gas turbines. In order to solve the problem of how to realize sensitive detection and isolation of actuator and sensor faults in the process of state monitoring of gas turbines. The method of the present invention includes the following steps: S1. After the fault occurs, perform the first fault detection through the sensor fault detection system and the actuator fault detection system to determine the number of faulty sensors and the fault deviation of the actuator; S2, remove all faults The sensor sends the actual measurement value of the sensor that has not failed to the fault detection system of the actuator; at the same time, the control value output by the control system to the actuator is repaired through the fault deviation of the actuator obtained in step S1, and its It is sent to the sensor fault detection system; the second fault detection is carried out to realize the determination of the cause of the gas turbine failure. Mainly used for fault detection.

Description

technical field [0001] The invention belongs to the technical field of gas turbines. Background technique [0002] A gas turbine is a rotating machine composed of a compressor, a combustion chamber, a turbine and a series of auxiliary systems, and is an important motive power device. It has been widely used in power systems, aerospace, ships and many other fields, and is the core power equipment for efficient energy conversion and clean utilization in the 21st century and beyond. Gas turbine is known as "the jewel in the industrial crown". Its working principle and internal structure are very complex, and the working environment is very harsh. Usually, it is necessary to monitor its operating status in real time, and use monitoring data for system status monitoring. Condition monitoring requires the use of numerous sensors scattered on the gas turbine to collect unit operation data in real time and send it to the monitoring system for state analysis and system fault detecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/04G06F17/10
CPCG01M15/04G06F17/10
Inventor 刘金福朱麟海龙振华罗京任铭昊刘鑫
Owner HARBIN INST OF TECH
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