RESIDUAL SPACE OF KERNEL PRINCIPAL COMPONENT ANALYSIS BASED SENSOR FAULT DIAGNOSIS

ZHOU Weiqing1; LI Hui2; ZHOU Jianxin1; QIAO Zongliang1; SI Fengqi1; XU Zhigao1 1.School of Energy and Environment

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RESIDUAL SPACE OF KERNEL PRINCIPAL COMPONENT ANALYSIS BASED SENSOR FAULT DIAGNOSIS

Thermal Power Generation Vol. 41, Issue 12, Pages: 84-89(2012)

更新时间：2025-09-28

- RESIDUAL SPACE OF KERNEL PRINCIPAL COMPONENT ANALYSIS BASED SENSOR FAULT DIAGNOSIS
- 作者机构：
  
  1. 东南大学能源与环境学院
  2. 华能国际电力股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212
- Published：2012
- 稿件说明：
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ZHOU Weiqing1, LI Hui2, ZHOU Jianxin1, et al. RESIDUAL SPACE OF KERNEL PRINCIPAL COMPONENT ANALYSIS BASED SENSOR FAULT DIAGNOSIS[J]. Thermal Power Generation, 2012, 41(12): 84-89.
DOI：

ZHOU Weiqing1, LI Hui2, ZHOU Jianxin1, et al. RESIDUAL SPACE OF KERNEL PRINCIPAL COMPONENT ANALYSIS BASED SENSOR FAULT DIAGNOSIS[J]. Thermal Power Generation, 2012, 41(12): 84-89. DOI：

摘要

将核主元的高维特征空间分为主元空间和残差空间

提出了1种基于残差空间的故障分离算法

其约简了反映主元空间的分项

使计算量大幅降低。应用该方法诊断传感器故障具有不受残差污染

易于实现等优点。对某600MW机组回热系统测量数据进行分析结果表明

基于核主元残差空间分析传感器的故障诊断方法能够及时诊断出不同类型传感器的故障

即使在多个传感器同时出现故障时

也能够准确诊断出故障

并能够及时地分离出故障传感器。

Abstract

High dimensional feature space of the kernel principle component was divided into principle component subspace and residual space in this paper.A residual space based fault isolation algorithm was proposed

which reduced the subitem reflecting the principle component subspace

made the computational complexity dramatically decreased.Fault isolation algorithm applying residual space of kernel principle component analysis has such advantages as restriction of residual contamination and easy to be realized

so it can be used for sensor fault diagnosis.Taking the regenerative system of a 600 MW unit as an example

analysis on the measured data shows that

this method can timely diagnose the sensor fault of different types

even when multiple sensors' failures occur simultaneously

it can accurately diagnose the fault and isolate the fault sensor in time.

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