A direct control parameter tuning method using generalized minimum variance evaluation

Author(s):  
Kazuma Ando ◽  
Shiro Masuda
2008 ◽  
Vol 20 (4) ◽  
pp. 578-584
Author(s):  
Taichi Sato ◽  
◽  
Yuta Murayama ◽  
Hiroshi Igarashi ◽  
◽  
...  

We have conducted experiments of operating a force operating joystick to the sound. Test subjects listen to white noise with square envelope in a semi anechoic room and joystick operating force is measured. We have seen that time waveform of operating force varies among experiments. Variation in operating force depends on day, test subject, etc. And, we have established an acoustic control system that feedbacks operating force for realizing target value of joystick operating force. We conducted a constant-value control experiment using PI control in which each control parameters’ effects are studied. As a result, among three existing control parameter tuning methods, Cohen-Coon’s control parameter tuning method is the most appropriate for our system.


2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Yongli Zhang ◽  
Lijun Zhang ◽  
Zhiliang Dong

The optimization and tuning of parameters is very important for the performance of the PID controller. In this paper, a novel parameter tuning method based on the mind evolutionary algorithm (MEA) was presented. The MEA firstly transformed the problem solutions into the population individuals embodied by code and then divided the population into superior subpopulations and temporary subpopulations and used the similar taxis and dissimilation operations for searching the global optimal solution. In order to verify the control performance of the MEA, three classical functions and five typical industrial process control models were adopted for testing experiments. Experimental results indicated that the proposed approach was feasible and valid: the MEA with the superior design feature and parallel structure could memorize more evolutionary information, generate superior genes, and enhance the efficiency and effectiveness for searching global optimal parameters. In addition, the MEA-tuning method can be easily applied to real industrial practices and provides a novel and convenient solution for the optimization and tuning of the PID controller.


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