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A hybrid model for furnace exit gas temperature monitoring based on CM-LSSVM-PLS

  • Zhengfeng Liu
  • , Jingcheng Wang
  • , Yuanhao Shi
  • , Bohui Wang
  • , Langwen Zhang
  • Shanghai Jiao Tong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Monitoring system of furnace ash fouling is the foundation of the soot-blowing operation on furnace area. For furnace exit gas temperature (FEGT) is the key parameter in monitoring system, a new CM-LSSVM-PLS method is proposed to predict FEGT. In the process of CM-LSSVM-PLS method, considering the characteristics of operational data, c-means (CM) cluster algorithm is used to partition the training data into several different subsets. Submodels are subsequently developed in the individual subsets based on least squares support vector machine (LSSVM). Finally, partial least squares (PLS) algorithm is employed as the combination strategy. The single LSSVM is established to make a comparison with CM-LSSVM-PLS method. The proposed model is verified through operation data of a 300MW generating unit. The comparison result shows that the new CM-LSSVM-PLS method can predict FEGT accurately while the time consumed in modeling decrease drastically.

Original languageEnglish
Title of host publication26th Chinese Control and Decision Conference, CCDC 2014
PublisherIEEE Computer Society
Pages488-493
Number of pages6
ISBN (Print)9781479937066
DOIs
StatePublished - 2014
Externally publishedYes
Event26th Chinese Control and Decision Conference, CCDC 2014 - Changsha, China
Duration: 31 May 20142 Jun 2014

Publication series

Name26th Chinese Control and Decision Conference, CCDC 2014

Conference

Conference26th Chinese Control and Decision Conference, CCDC 2014
Country/TerritoryChina
CityChangsha
Period31/05/142/06/14

Keywords

  • C-means cluster
  • Coal-fired boiler
  • Furnace exit gas temperature
  • Least squares support vector machine
  • Partial least squares

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