On Wed, Nov 24, 2010 at 8:44 AM, Anthony Cowley <acow...@seas.upenn.edu> wrote: > On Wed, Nov 24, 2010 at 4:20 AM, Noel Welsh <noelwe...@gmail.com> wrote: >> I would adjust the guess by a fraction of the error. This is basically >> a gradient following rule. I.e.: >> >> Guess(t+1) = Guess(t) + alpha Error >> >> where alpha is some parameter that you set via your simulated annealing > > As a followup, the rule of thumb I have picked up is that step 1 in > throwing together a controller should pretty much always be, "Why is > PID not appropriate?" > > Typically you can't answer this question, and may stop the design > recipe at step 1. :) > > <http://en.wikipedia.org/wiki/PID_controller> > > Start with a proportional controller (like Noel's suggestion), if it > doesn't *quite* get you to the set point and that steady state error > is an issue, add in the I and D terms.
Thank you so much! I'll do so. _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
