Method for forecasting gas turbine health

A gas turbine, health state technology, applied to gas turbine devices, mechanical equipment, jet propulsion devices, etc., can solve problems such as excessive maintenance, insufficient maintenance, and difficulty in preventing catastrophic failures, so as to achieve good self-adaptive judgment ability and improve reliability Effectiveness and high practical value

Inactive Publication Date: 2011-10-26
HARBIN ENG UNIV
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AI Technical Summary

Problems solved by technology

"After-the-fact maintenance" is maintenance after the system fails, which has caused inestimable property damage or casualties; while "planned maintenance" is difficult to prevent catastrophic failures, and often causes unnecessary downtime and unacceptable risks
Although planned maintenance is a preventive maintenance method, it often results in insufficient maintenance and excess maintenance

Method used

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  • Method for forecasting gas turbine health
  • Method for forecasting gas turbine health
  • Method for forecasting gas turbine health

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Embodiment Construction

[0019] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0020] combine Figure 1~2 The gas turbine health state prediction device includes a field bus interface, a signal processing module, a database module, a health analysis module and a man-machine interface.

[0021] Various sensors installed on n gas turbines, such as speed, exhaust temperature, starting motor speed, lubricating oil temperature, fuel pressure and other signals, are connected to the field bus interface of the gas turbine health status prediction device through the field bus.

[0022] The signal processing module realizes the acquisition of gas turbine operating state parameters through the field bus interface. The signal processing module performs signal preprocessing and feature extraction on the collected data, and stores them in the database module according to a certain storage format.

[0023] The database module realizes the storage of hist...

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Abstract

The invention aims to provide a method for forecasting gas turbine health. The method is characterized in that: a rotating speed sensor, an exhaust temperature sensor, a staring motor speed sensor, an oil temperature sensor and a fuel pressure sensor are installed on a gas turbine, and all the sensors are connected to a field bus interface; a signal processing module collects running state parameters of the gas turbine through the field bus interface, and conducts signal preprocessing and characteristic quantity extraction to the collected signal, then stores a sample set in a database module; a health analysis module calls the sample set in the database module, chooses a health analysis method to perform data mining, and carries out a real-time or non-real-time forecasting to the health level of the gas turbine; a forecasted result of the health level is displayed and an alarm is given by a human machine interface, and the forecasted result is stored to the database module. With the invention, combined monitoring of multiple gas turbines can be realized, and the reliability of the turbine is enhanced through a modular system scheme. With a high success rate in terms of health analysis result, the method of the invention can be widely applied in the fields of fault diagnosis and health management of gas turbines.

Description

technical field [0001] The invention relates to a method for monitoring the operation safety of a gas turbine. Background technique [0002] In the actual production process, many operating conditions of gas turbines are relatively harsh, and once a failure occurs, serious consequences will occur. Although the gas turbine's own controller has fault alarm and certain fault-tolerant control functions. However, the alarm function of the controller can only judge that the current operating condition does not exceed the operating limit, and does not have the ability to predict and diagnose. When the gas turbine control system does not alarm, the gas turbine may already be in a dangerous operating area. At this time, it is difficult for the operator to restore the system operating conditions to the normal area, or although the operating conditions can be restored to the normal area, the production has been seriously affected. economic benefits. [0003] In the field of equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/00
Inventor 曹云鹏李淑英王伟影王志涛谢春玲张晓云赵宁波李辉衣爽顾恒文
Owner HARBIN ENG UNIV
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