fuzzy logic rules
in [Matlab]
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From: ramya amir on 4 Feb 2010 00:18 hi, i am doing my project in speed control of switched reluctance motor. here i am going to design speed controller block using fuzzy logic controller. from the machine output i have taken speed,torque,inductance etc.. the input to the fuzzy controller is speed error and rate of change in speed error.i have to take the reference current as output, which i have to feed to the hysterisis current controller. How do i write fuzzy rules for that??? please help me..
From: Arkadiy Turevskiy on 4 Feb 2010 13:54
This demo might help you get started: http://www.mathworks.com/products/demos/fuzzytlbx/FuzzySimdemo3/Viewlet/FuzzySimdemo3_viewlet.html You will have to experiment with rules for your specific problem, but in general you could do something simuilar to what the demo above shows: if the speed error is smalll, then don't change the current, if the speeds is higher then speed request- reduce the current, if lower - increase. Something like that, and you can refine it later with additional inputs like speed error rate. HTH. Arkadiy "ramya amir" <ramya.amir(a)gmail.com> wrote in message <hkdlaa$2s0$1(a)fred.mathworks.com>... > hi, > i am doing my project in speed control of switched reluctance motor. > here i am going to design speed controller block using fuzzy logic controller. > from the machine output i have taken speed,torque,inductance etc.. > the input to the fuzzy controller is speed error and rate of change in speed error.i have to take the reference current as output, which i have to feed to the hysterisis current controller. > How do i write fuzzy rules for that??? > please help me.. |