采用限定记忆极限学习机的过热汽温逆建模研究

王万召; 王杰

doi:10.7652/xjtuxb201402006

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采用限定记忆极限学习机的过热汽温逆建模研究

更新时间：2025-07-09

- 采用限定记忆极限学习机的过热汽温逆建模研究
- Inverse Modeling for Superheated Steam Temperature Based on Restricted Memory Extreme Learning Machine
- 西安交通大学学报 2014年48卷第2期页码：32-37
- 作者机构：
  
  郑州大学电气工程学院,郑州,450001
- 作者简介：
- 基金信息：
  
  : 2013-07-18。作者简介: 王万召(1972—),男,博士生;王杰(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(60974005)
- DOI：10.7652/xjtuxb201402006
  中图分类号： TP273
- 网络首发：2014-02-10，
  
  纸质出版：2014
- 稿件说明：
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王万召, 王杰. 采用限定记忆极限学习机的过热汽温逆建模研究[J]. 西安交通大学学报, 2014,48(2):32-37.

Inverse Modeling for Superheated Steam Temperature Based on Restricted Memory Extreme Learning Machine[J]. 2014, 48(2): 32-37.
王万召, 王杰. 采用限定记忆极限学习机的过热汽温逆建模研究[J]. 西安交通大学学报, 2014,48(2):32-37. DOI： 10.7652/xjtuxb201402006.

Inverse Modeling for Superheated Steam Temperature Based on Restricted Memory Extreme Learning Machine[J]. 2014, 48(2): 32-37. DOI： 10.7652/xjtuxb201402006.

摘要

针对常规极限学习机随着学习次数增加增益矩阵慢慢趋于零、学习算法逐渐失去修正能力而出现“数据饱和”的问题

提出了限定记忆极限学习机算法。该算法在学习过程中每增加一个新数据信息

就去掉一个旧数据信息

权值的学习只依赖于限定个数的最新数据信息

从而避免出现“数据饱和”。通过分析隐含层数据矩阵的特点

利用分块矩阵计算方法推导了限定记忆极限学习机在线学习算法。将该算法应用于参数时变的过热汽温对象逆模型的辨识

仿真实验结果表明:该算法能有效克服“数据饱和”问题

提高计算精度

是一种实用有效的过热汽温对象逆建模算法。

Abstract

A restricted memory extreme learning machine is proposed to improve the data saturation problem in the conventional extreme learning machine that is caused by the gain matrix gradually approaching zero as the sampled data increase and the weight values can't be modified by new sampled data. In the proposed algorithm

the neural network's weight values learning only depends on a limited number of new sample data by deleting an old data when a new data is received

and the data saturation is avoided. The characteristics of the hidden layer matrix are analyzed

and the calculation formula of block matrices is used to derive the proposed algorithm. Then the learning algorithm is applied to identify the inverse model of the superheated steam temperature plant. Simulation results show that the proposed learning algorithm overcomes the data saturation problem effectively

and improves the precision of the weight values learning.

关键词

Keywords

references

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