Dissertation > Excellent graduate degree dissertation topics show

Research on Soft Sensing Model of Methanol Synthesis Process Based on Improved Artificial Bee Colony Algorithm and LSSVM

Author: WangShan
Tutor: GuXingSheng
School: East China University of Science and Technology
Course: Control Science and Engineering
Keywords: Soft sensing Modeling Artificial Bee Colony Algorithm LSSVM Methanol Synthesis Process
CLC: TP274
Type: Master's thesis
Year: 2012
Downloads: 151
Quote: 1
Read: Download Dissertation

Abstract


In order to ensure the gains and quality of methanol production, the important technical parameter——mass fraction of crude methanol must be closely monitored in methanol synthesis process. However, due to some technical reasons and the economic conditions, the parameter can’t be measured in real-time. This paper is sponsored by the methanol project designed by a chemical factory, builds a soft sensing model of methanol synthesis process based on Least Squares Support Vector Machine to calculate the mass fraction of crude methanol. and the model parameters are selected by improved Artificial Bee Colony Algorithm, so mass fraction of crude methanol can be estimated and detected on-line.First, this paper researches an intelligent optimization algorithm——Artificial Bee Colony Algorithm (ABC) which was presented in 2005, and to the deficiency of Artificial Bee Colony Algorithm, Bi-Group Artificial Bee Colony Algorithm based on Chaotic Optimization (BCABC) is brought forward. The simulation results show that the convergence rate and exact of BCABC are better than basic ABC’s. Using BCABC to select LSSVM model parameters can get better combined model parameters and BCABC-LSSVM model has higher accuracy, LSSVM method based on improved Artificial Bee Colony Algorithm is feasible and effective. Second, BCABC-LSSVM is used in methanol synthesis process. Select secondary variables and build methanol synthesis process soft sensing model based on BCABC-LSSVM after studying the methanol synthesis process and analyzing the influencing factors of the methanol synthesis process by actual field data. The calculation results by the soft sensing model based on BCABC-LSSVM agree well with actual value and the soft sensing model has good generalization ability. Finally, for the methanol synthesis process, VC++6.0 and KingView6.5 are used to develop a soft sensing system the which can run on upper computer and the tested results are well.

Related Dissertations

  1. The Realization of Coal Liquefaction in the Continum Model System and the Experimental Research of Coal Liquefaction,TQ529.1
  2. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  3. Coupled Calculation of the Solidification Paths of Ternary Eutectic Alloys Based on Thermo-Calc,TG111.4
  4. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  5. Design and Simulation of Flight Management Computer System CDU Unit in Flight Simulation,TP391.9
  6. Modeling Internet Link Delay Based on Measurement,TP393.4
  7. Aerial Target Anti-interference Recognition and Tracking System,TN215
  8. Based on SEM Quality Evaluation of Rural Compulsory Education in China,G522.3
  9. Steering Mechanism and Hydraulic System for the Electronic Control Hydraulic Power Steering System of Tractor,S219.02
  10. Moving target trajectory analysis based Intelligent Traffic Monitoring System,TP277
  11. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  12. The Analysis of the Dynamic Character and the Rearch of the Control Metrod on 2030 Temper Mill Pressing System,TG333
  13. The Research on Hydraulic System of Two-roll Straightening Machine,TG333.23
  14. Design and Performance Simulation Research of the Reconfigurable Mobile Wheel-armed Robot,TP242
  15. Decision Design and Research on Moving-iron Linear Oscillatory Motor with Two Separated Stators,TM359.4
  16. Soft-measuring of Hot-rolled Strip’s Mechanical Properties Based on Improved BP Algorithm,TP183
  17. Rational Drug Design Against β3-AR and GLP-1R Related to Type Ⅱ Diabetes Mellitus,R914.2
  18. Model and Design for Teaching Evaluation System at Higher Institutions,TP391.6
  19. Analysis and Transmission Line Dancing fiber sensor -based monitoring technology research,TP212.14
  20. Soft Sensor of Naphtha Dry Point on Support Vector Machines Regression,TE622.1

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system
© 2012 www.DissertationTopic.Net  Mobile