Dissertation > Excellent graduate degree dissertation topics show

Design and Research of Control System for Continuous Annealing Furnace

Author: XiaoWenZhao
Tutor: ZhengYan;LiChangWang
School: Northeastern University
Course: Control Engineering
Keywords: temperature control continuous annealing furnace conventional PID control fuzzy PID Control
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 98
Quote: 0
Read: Download Dissertation

Abstract


The continue annealing furnace is a very important equipment for heating treatment of the strip. The stabilization of the furnace temperature directly influences the quality of the products. In the temperature control system of the continue annealing furnace, characteristics of the controlled subject are big inertia, lagging, non-linear. When we use the classic optimized control method, it’s difficult to get ideal result. So in order to improve the self-adaptation and anti-jamming of the system, the only thing that we can do is adjusting set points of the control system by OP. But when the conditions are changing, there is always big difference between the real values and target values, so normally the quality goes down, and the cost goes up. being aimed at this kind of situation, this thesis studies the temperature control problems of continue annealing furnaces, according to the continue annealing furnace of SHOUGANG cold rolling company.Until now, in many furnaces, the temperature is controlled by manual or PID, so controlling procession is low, and result is not so ideal. In recent years, the whole world do a lot of deeper and wider research about temperature control units, and with the development of computer technology, the research of temperature control units is well developed, then a series of control units are produced, such as intelligent PID, fuzzy controller, self-adaptation controller, nerve net controller, etc, these controllers are stable, and efficient, and now are widely used.So for the continue annealing furnace the deviation of temperature is too big, and adjusting time is too long, in order to find one solution for these problems, basis on the analysis of process and requirements of the continue annealing furnace, I find one solution for the temperature control base on fuzzy PID, and with this method the precision is well improved. Integrating fuzzy controller into classic PID controller, using fuzzy control theory to set the coefficients of ratio, integration, differentiation, building the table for parameters of fuzzy controller, with the fuzzy inference I get the decision table for the fuzzy controller, at the same time I simulate the temperature curve of the furnace, then the results show that the parameter table is reasonable, and considering of the response speed, stationarity precision, it is better than classic PID. For the fuzzy PID controller, the requirements of system model are not very critical. Even with some disturbing signal or system model changing, the controller always satisfies the process demand of the furnace, also it can increase the precision of temperature controlling, improve the quality of annealing strip, and suits for all kinds of temperature control system for continue annealing furnaces whose systems are non-linear, lagging and with serious random disturbing.

Related Dissertations

  1. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  2. Research on Temperature Control System for High-Performance Oven-Control Crystal Oscillator (OCXO),TN752
  3. Stable Carbon Isotope Compositions in C3 、C4 Herbaceous Plants and Their Responce to Changing Temperature,Q945
  4. Small unmanned helicopter stability augmentation experimental system design and control algorithm for aerial photography,V249.1
  5. Intelligent Control and Simulation for Air Compressor System,TB657.7
  6. The Development of Electric Control System for Product Line of Cross-Linked Cable,TP273.5
  7. Research and Implementation of Parameter Self-modify Fuzzy-PID Control Algorithm Based on Prediction Model,TP273.24
  8. Design and Implementation of Furnace Temperature Monitoring System for Continuous Annealing Line Based on PCA,TP274.4
  9. Research of PCR Chip System Based on MEMS,Q78
  10. The Research and Practice upon Predictive Function Decoupling Control Based on the Particle Swarm Optimization,TP273
  11. Design and Implementation of the Pressure Control System for Twin Extruder,TP273
  12. Research on Remote Monitoring System for Temperature of Oil Pipeline of Offshore Well,TP277
  13. Application and Research of Tension Control System for Single Stand 4-High Aluminium Strip Cold Mill,TP273.5
  14. LC25W-A Semiconductor Research and Implementation of Laser Modulation Circuit,TN248.4
  15. Design and Research of Automatic Monitoring and Control System for Sewage Treatment,X703
  16. Research and Application of Embedded Industrial Ethernet Controller,TP273
  17. Design and Realization of Automatic Control System of CDQ,TP273
  18. Design and Realization on Control System of Green Anode Production,TP273
  19. The Design and Implementation of Combustion Control System for Regenerative Walking-beam Furnace,TP273
  20. Research and Control of the Blast Furnace Dumping System,TP273
  21. Research and Implementation of Optimized Strip Temperature Computer Control System of Heating Furnace,TP273.5

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
© 2012 www.DissertationTopic.Net  Mobile