fuzzy

[sadiah]

Hi,

Anybody got experience with Fuzzy on  motion control (to control axes, x, y, z)

TQ.

[Allison_S]

TQ,

    I'm not sure what you are referring to as "fuzzy."  Is that a certain kind of software/toolkit?  What is your application?  What kind of motors are you using?  I guess I just need more of an explanation of what you're trying to do, thanks 🙂

-Allison S.

Applications Engineering

[sadiah]

I want to compare between Fuzzy controller and PID controller. All device involves FP and Labview. Should I wired my ac servo drives to torque mode (or suggest a better mode) if my objective is for the system to follow the speed-distance profile. I want to see which has a better performance: PID or Fuzzy controller.

Anybody did a similar project before?

Should I want to do the system identifation for the transfer function, how do I go about it? Or is it not necessary since I have SoftMotion software.

Thanks.

SADIAH

[michenglaoxu]

Hi Sadiah,

I am very interested in this topic. To my knowledge, PID control is suitable for Plant system order lower than 2.  Fuzzy however, really depends on the expert experience. In  most situations especially for stable system like your application, PID is enough. But PID tuning is a little bit time consuming.

You can send email to xujw80@hotmail.com

[Barp]

Sadiah,

The PID Control Toolkit has Fuzzy and PID Toolkit available for you (or, if you have RT is already included) and you could use your controller . Softmotion would help to give the spline generator and use normal DAQ boards for this application. However, depending of the frequency necessary to control, maybe you'd be better using the motion control boards since they can be syncronized.

Please let me know if you have more questions.

Alex Barp

[sadiah]

Before implementing to the real system I want to simulate my fuzzy controller and pid controller on ac servomechanism. Where to start?

[Barp]

Well, you could start getting used to PID and Fuzzy Toolkits and, the best way is to analyze the examples. I also advice to use latest version 8.20, since they were improved related to previous version. If you have LabVIEW RT 8.20, this comes with it.

Also, there is an example that teaches you how to implement a PI controller with Fuzzy that maybe you'd like to study. The manual helps you to understand how use Fuzzy Controllers and give you a background on this technology.

[ssaara]

hi sadiah

i am doing in similar project to design fuzzy controller to control to DC servo motor

how can i help u?