Vibration state evaluation for steam turbines through principal component analysis

HAN Zhonghe; ZHAI Xinjie; JIAO Hongchao

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Vibration state evaluation for steam turbines through principal component analysis

Thermal Power Generation Vol. 44, Issue 6, Pages: 21-24(2015)

更新时间：2025-09-28

- Vibration state evaluation for steam turbines through principal component analysis
- 作者机构：
  
  华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM311
- Published：2015
- 稿件说明：
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HAN Zhonghe, ZHAI Xinjie, JIAO Hongchao. Vibration state evaluation for steam turbines through principal component analysis[J]. Thermal Power Generation, 2015, 44(6): 21-24.
DOI：

HAN Zhonghe, ZHAI Xinjie, JIAO Hongchao. Vibration state evaluation for steam turbines through principal component analysis[J]. Thermal Power Generation, 2015, 44(6): 21-24. DOI：

摘要

通过反映汽轮机运行状态的振动特性指标可对当前汽轮机振动状态进行监测和评价。一般需要多个指标才能从不同角度比较完整地反映汽轮机的运行状态

但直接通过多个指标直观地评价汽轮机的运行状态比较困难。对此

基于主成分分析法构造综合评价函数

通过综合得分对汽轮机的运行状态进行评价

并利用转子实验台实验数据进行验证。结果表明

该方法在信息量损失较小的前提下

可以定量评价汽轮机的振动状态。

Abstract

The vibration characteristic indicators reflecting operation status of steam turbines can be applied to monitor and evaluate the current vibration state of the steam turbine.Generally

more than one characteristic indicator are needed to completely reflect the vibration status of steam turbine from different aspects.However

it is difficult to evaluate the steam turbine's vibration status directly by multiple indicators.To solve this problem

a comprehensive evaluation function was established

on the basis of principal component analysis.The turbine's vibration state was evaluated by comprehensive scores

and the results were verified by experimental data from rotor test rig.The results show this method can evaluate the steam turbines' vibration state quantitatively on the premise of a smaller amount of information loss.

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