Study on Fuzzy PID Control in Double Closed-Loop DC Speed Regulation System

Author(s):  
Huafen Yang ◽  
Dechun Dong ◽  
Youjun Ren ◽  
Jian Xu ◽  
Siyuan Yang
2014 ◽  
Vol 697 ◽  
pp. 151-155
Author(s):  
Bing Deng ◽  
Guo Qiang Shen

Aiming at the deficiencies of traditional PID control algorithm, the application of Fuzzy PID control algorithm is proposed in variable frequency speed regulation system of glass edge grinding machine. The design of fuzzy PID controller is presented in the paper. The paper not only introduces the system principle and models for inverter and AC asynchronous motor but also tells the principle of Fuzzy PID Controller and its design method. A simulation model including traditional PID Controller and Fuzzy PID Controller is established in MATLAB/Simulink. Through the analysis of the difference between the two controlling outputs, the better performance of Fuzzy PID Controller in response speed, accuracy and stability is proved effectively. The result can be used as important criterion to the practical application of Fuzzy PID control algorithm.


2013 ◽  
Vol 331 ◽  
pp. 263-266
Author(s):  
Yan Qiang Li ◽  
Zhi Gang Yao ◽  
You Lin Xu

In this paper, two types Fuzzy-PID composite control methods were studied. The Fuzzy-PID alternately control and parallel connection control were simulated by MATLAB SIMULINK. The simulation conclusions were that Fuzzy-PID composite control effect was better than FUZZY control or PID control, and Fuzzy-PID parallel connection control effect was better than alternately control on diesel engine speed regulation.


2012 ◽  
Vol 605-607 ◽  
pp. 1729-1733
Author(s):  
Qing Rui Meng ◽  
Jian Wang ◽  
Shang Fei Lin

The tramcar runs upward and downward frequently and the load varies with practical requirements, the operating conditions of the hydro-viscous winch are very complex, so the ordinary PID controller cannot meet the requirements of the winch. In order to control the speed of the hydro-viscous winch precisely and obtain perfect starting speed, a new fuzzy-PID control system was designed, the starting process of the winch and the speed regulation characteristics were simulated by using MATLAB. The results show that the designed control system can meet the requirements of the winch well. It can not only obtain perfect starting speed, but also adjust the running speed precisely. Research achievements of this work provide theoretical basis for optimal design and practical applications of the hydro-viscous winch.


2012 ◽  
Vol 505 ◽  
pp. 227-232
Author(s):  
Yan Sheng Li ◽  
Man Feng Dou ◽  
Jin Li Lei

The system of contra rotating PMBLDCM widely used in underwater vehicle is a non-linear, multi-variable, time-varying system. Using the traditional method for PID control is difficult to achieve fine control effect. By designing a Fuzzy-PID controller, fuzzy algorithm for on-line auto-tuning PID parameters is applied to the system of a speed closed-loop in PMBLDCM double closed-loop system. An example of how to design and simulate the system by using the software MATLAB is introduced. The simulation results show that the method of Fuzzy-PID control has better control performance comparing with the conventional PID control, it has characteristics of no overshoot, fast response, small torque ripple.


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