Preventive maintenance strategy for master fuel trip in thermal power plants

FU Yali; BAI Yan

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Preventive maintenance strategy for master fuel trip in thermal power plants

更新时间：2025-09-28

- Preventive maintenance strategy for master fuel trip in thermal power plants
- Thermal Power Generation Vol. 44, Issue 3, Pages: 115-118(2015)
- 作者机构：
  
  华北电力大学控制与计算机工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK228
- Published：2015
- 稿件说明：
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FU Yali, BAI Yan. Preventive maintenance strategy for master fuel trip in thermal power plants[J]. Thermal power generation, 2015, 44(3): 115-118.
DOI：

FU Yali, BAI Yan. Preventive maintenance strategy for master fuel trip in thermal power plants[J]. Thermal power generation, 2015, 44(3): 115-118. DOI：

摘要

火电厂锅炉总燃料跳闸(MFT)是实现锅炉保护功能的安全仪表系统

为了确保安全功能的正常运行

对其进行了预防性维修策略的研究。结合火电厂实际运行工况

以MFT的炉膛压力保护系统为研究对象

建立了马尔科夫模型;应用可靠性和安全性理论

以可用率和可靠性最高、维修费用最低为目标

实施多目标优化策略;在规程规定时间范围内

优化预防性维修间隔。

Abstract

Main fuel trip( MFT) in thermal power plants is a safety instrumented system which can achieve tripping protection for boilers. In order to ensure normal operation of the safety function

preventive maintenance strategy research was carried out. On the basis of the actual operation

the Markov model for furnace pressure protection function of the MFT was established. The reliability and security theory were applied to perform multi-objective optimization strategy

by taking the highest availability and reliability

and lowest maintenance cost as the goals. Moreover

the preventive maintenance intervals were optimized within the time range the regulations ruled.

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