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Fuzzy Control System Petri net modeling and Stability

Author: ShiChao
Tutor: ZhuRongMing
School: Xi'an University of Electronic Science and Technology
Course: Control Theory and Control Engineering
Keywords: Fuzzy Control Petri net modeling Stability
CLC: TP273.4
Type: Master's thesis
Year: 2010
Downloads: 100
Quote: 2
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Abstract


Stability control system is one of the most important indicators . For designers , the analysis and design of a fuzzy control system, the first thing to consider is the stability of the system , because an unstable control system can not be put into practical applications . For the fuzzy control system , stability analysis is difficult , it is because these systems are essentially linear. Fuzzy Control System Stability Analysis and design of fuzzy control theory has been an important research topic , many scholars have done a lot of work in this area , made ??to a number of theoretical results, however, has not yet formed a complete theoretical system , as well as many theoretical issues to be further study. Since Petri nets can not only be used to describe the change control process can also represent data transfer , so we can use Petri nets to analyze the stability of fuzzy control system . When analyzing the stability , Petri nets all the changes and the role of the controller and the controlled object has a very clear correspondence between the behavior of the control system is very easy to understand. This paper introduces the fuzzy control and the basic theory of Petri nets , Petri nets and then use the fuzzy control system modeling tool gives the fuzzy controller modeling method in fuzzy control system based on Petri net model , to a fuzzy control system stability theorem, the fuzzy control system is stable and sufficient and necessary conditions . Finally, the single- pole inverted pendulum fuzzy control system , circuit current and the second object fuzzy control system of fuzzy control systems were set up corresponding Petri net model , simulation analysis, the paper proposed Petri net modeling and fuzzy control system the stability theorem was verified simulation results show that the proposed modeling approach and the effectiveness of stability theorem .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Fuzzy control, fuzzy control system
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