Method for predicting residual useful life of electronic components of generating set automatic control system

A technology of automatic control system and electronic components, applied in forecasting, instrumentation, data processing applications, etc., can solve the problems of generator set output reduction, economic loss, generator set outage, etc.

Active Publication Date: 2007-09-19
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the serious consequences of the failure of electronic components in the automatic control system of some generator sets, it may cause the equipment to stop running, the output of the generator set to decrease, or the generator set to stop operating. Replacement or main

Method used

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  • Method for predicting residual useful life of electronic components of generating set automatic control system
  • Method for predicting residual useful life of electronic components of generating set automatic control system
  • Method for predicting residual useful life of electronic components of generating set automatic control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The input / output module of the steam turbine automatic control system of a certain type of 600MW generating set adopts the electronic component life prediction system of the automatic control system of the generating set shown in Figure 1 and the electronic component life prediction computer software of the automatic control system of the generating set shown in Figure 2. On the application computing server in the control center of the power plant. The life prediction of the input / output module of the steam turbine automatic control system of this type of generator set is carried out, and the replacement cycle, optimal maintenance interval and remaining life of the input / output module of the steam turbine automatic control system of the generator set are obtained.

[0054] Step 1: Input the dates when 16 samples of the input / output modules of the steam turbine automatic control system of the 600MW generator set for power generation were put into use and the dates when 4 ...

Embodiment 2

[0066] The distributed control system (DCS) of a certain type of 300MW generating set adopts the life prediction system of the electronic components of the automatic control system of the generating set shown in Figure 1 and the computer software for the life prediction of the electronic components of the automatic control system shown in Figure 2, and obtains The man-machine interface, communication loop and control unit replacement cycle of the decentralized control system optimizes maintenance intervals and remaining life.

[0067] Step 1: The decentralized control system of this type of 300MW generating set has just been put into commercial operation, and the human-machine interface, communication circuit and control unit have not failed, and life data statistics cannot be performed. In this case, the failure rate of calling the man-machine interface of the distributed control system of the generating set from the database server 1 is λ 1 =1.87×10 -7 , The failure rate of...

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Abstract

The invention is related to a method for estimating the residual life of the electronic component of the power set auto-control system, which is characterized in that C-language is used to compile a computer software for estimating the residual life of the electronic component of the power set auto-control system which is installed between the life and reliability-counting server, the method are that: inputting or calling the basic data, determining the distribution category and parameters of the life data of the electronic component, counting the average malfunction fore time MTTF, counting the reliability R(t) of the electronic component, counting the reliable life tRO of the electronic component, determining the changeover period HRP of the electronic component, determining the optimized maintenance interval of the electronic components of the auto-control system and estimating the residual life HRL of the electronic component. The advantage of the invention is that the residual life of the electronic component for the power set auto-control system can be estimated on line.

Description

technical field [0001] The invention relates to a method for predicting the remaining life of electronic components in an automatic control system of a generator set, which is applied to the replacement and maintenance of electronic components in the automatic control system of a generator set, and belongs to the technical field of automatic control of generator sets. Background technique [0002] Automatic control is one of the necessary conditions for the production of power plants. Automatic control is mainly for the automatic control of the operation of the main engine of the generating set and its auxiliary equipment. The purpose of the control is to make the generating set automatically adapt to changes in working conditions and maintain a safe and economical operating under conditions. The automatic control system of the generating set provides technical means for monitoring and controlling the life loss of the durable parts of the main engine. There are a large numb...

Claims

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Application Information

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IPC IPC(8): G06Q10/00G06Q50/00G06Q10/04G06Q50/06
Inventor 史进渊杨宇邓志成刘向民
Owner SHANGHAI POWER EQUIP RES INST
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