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DSP fuzzy intelligent controller in multi - servo system

Author: MaoYuanQi
Tutor: YangFeng；LiDeJian
School: University of Electronic Science and Technology
Course: Electronics and Communication Engineering
Keywords: Servo system Fuzzy Control PID control Control algorithm Robustness
CLC: TP273.4
Type: Master's thesis
Year: 2008
Downloads: 95
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Abstract


Thesis work in a servo system for the study commenced . In order to solve the radar servo system control object parameters change and cause system performance degradation problem , on the basis of analysis of the structure and principles of radar servo system , the fuzzy control technology and PID control technology combined fuzzy intelligent control technology applied to multi- loop with the actuation system tracking radar position , and achieved satisfactory control effect . Firstly, analysis of radar servo system composition and control problems , and on this basis , the design of multi- moving current loop , velocity loop and position loop . Expounded fuzzy control , PID control theory based on the basis of analysis the shortcomings of the fuzzy control and PID control , fuzzy intelligent control technology ; analysis of the characteristics of fuzzy intelligent control system , the structure of the system , the system control principle and fuzzy control rules . DSP design fuzzy intelligent controller , fuzzy variables selected to do the more detailed provisions , to determine the membership function , fuzzy parameters adjustment rules table According to experts operator experience , generate the fuzzy control rules , then synthetic reasoning method of fuzzy reasoning , final judgment with the center of gravity method for defuzzification . Using Simulink software that created the DSP fuzzy intelligent controller in multi- servo system tracking radar position loop simulation , made ??a detailed analysis of the simulation results , and with the traditional PID control system step response , slope response and a control object parameters change when the performance of the system were compared. The analysis results show that the DSP fuzzy intelligent controller has good transient response performance and stable performance , have better response characteristics of the step input and ramp input , has strong adaptability to changes in system parameters and Lu stick . DSP fuzzy intelligent controller applied to the tracking radar servo system position loop control , to improve the multi- tracking speed and tracking accuracy with the dynamic system , with good practical significance .

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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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