SCI和EI收录∣中国化工学会会刊

›› 2014, Vol. 22 ›› Issue (11/12): 1254-1259.DOI: 10.1016/j.cjche.2014.09.023

• 过程系统工程与过程安全 • 上一篇    下一篇

Soft Computing of Biochemical Oxygen Demand Using an Improved T-S Fuzzy Neural Network

Junfei Qiao, Wei Li, Honggui Han   

  1. College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
  • 收稿日期:2014-01-03 修回日期:2014-03-08 出版日期:2014-12-28 发布日期:2014-12-24
  • 通讯作者: Junfei Qiao
  • 基金资助:
    Supported by the National Natural Science Foundation of China (61203099, 61034008, 61225016), Beijing Science and Technology Project (Z141100001414005), Beijing Science and Technology Special Project (Z141101004414058), Ph.D. Program Foundation from Ministry of Chinese Education (20121103120020), Beijing Nova Program (Z131104000413007), and Hong Kong Scholar Program (XJ2013018).

Soft Computing of Biochemical Oxygen Demand Using an Improved T-S Fuzzy Neural Network

Junfei Qiao, Wei Li, Honggui Han   

  1. College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
  • Received:2014-01-03 Revised:2014-03-08 Online:2014-12-28 Published:2014-12-24
  • Supported by:
    Supported by the National Natural Science Foundation of China (61203099, 61034008, 61225016), Beijing Science and Technology Project (Z141100001414005), Beijing Science and Technology Special Project (Z141101004414058), Ph.D. Program Foundation from Ministry of Chinese Education (20121103120020), Beijing Nova Program (Z131104000413007), and Hong Kong Scholar Program (XJ2013018).

摘要: It is difficult to measure the online values of biochemical oxygen demand (BOD) due to the characteristics of nonlinear dynamics, large lag and uncertainty in wastewater treatment process. In this paper, based on the knowledge representation ability and learning capability, an improved T-S fuzzy neural network (TSFNN) is introduced to predict BOD values by the soft computing method. In this improved TSFNN, a K-means clustering is used to initialize the structure of TSFNN, including the number of fuzzy rules and parameters of membership function. For training TSFNN, a gradient descent method with the momentum item is used to adjust antecedent parameters and consequent parameters. This improved TSFNN is applied to predict the BOD values in effluent of the wastewater treatment process. The simulation results show that the TSFNN with K-means clustering algorithm can measure the BOD values accurately. The algorithm presents better approximation performance than some other methods.

关键词: Biochemical oxygen demand, Wastewater treatment, T-S fuzzy neural network, K-means clustering

Abstract: It is difficult to measure the online values of biochemical oxygen demand (BOD) due to the characteristics of nonlinear dynamics, large lag and uncertainty in wastewater treatment process. In this paper, based on the knowledge representation ability and learning capability, an improved T-S fuzzy neural network (TSFNN) is introduced to predict BOD values by the soft computing method. In this improved TSFNN, a K-means clustering is used to initialize the structure of TSFNN, including the number of fuzzy rules and parameters of membership function. For training TSFNN, a gradient descent method with the momentum item is used to adjust antecedent parameters and consequent parameters. This improved TSFNN is applied to predict the BOD values in effluent of the wastewater treatment process. The simulation results show that the TSFNN with K-means clustering algorithm can measure the BOD values accurately. The algorithm presents better approximation performance than some other methods.

Key words: Biochemical oxygen demand, Wastewater treatment, T-S fuzzy neural network, K-means clustering