Re: [python-control-discuss] some problems with control-0.6c

[Rene v. P. <ren...@gm...>]

I added capability for c2d to convert MIMO state-space systems, based on a
slycot function added to the repagh/slycot on github, so you need a new
slycot for that.

Thanks for the testing, by the way!

René


On 17 December 2013 11:25, Roberto Bucher <rob...@su...> wrote:

> Hi all
>
> I'm testing the last control-0.6c toolbox in order to actualize my
> yottalab package and I found some differences between the results of a
> couple of functions:
>
> 1) the c2d function should maintain the form of the state-space
> function. It seems that the system is first transformed into a transfer
> function and then discretized. In my opinion it is important that the
> state-space form of the discrete system is exactly the same (same
> states) that I have in the continuous representation.
>
> 2) The dare functions gives some wrong results, and I'll check the lqr
> function asap. Using the delivered "dare" function (mateqn.py) I have
> wrong values of the feedback gains (compared with the values given by
> matlab dlqr and scilab)
>
> 3) the lqr function doesn't accept a call like
>
> lqr(sys,Q,R) -> only 3 parameters!
>
>
> In the next time I'll check the gains returned by the lqr function,
> compared with matlab and scilab.
>
> Best regards
>
> Roberto
>
>
>
>
> ------------------------------------------------------------------------------
> Rapidly troubleshoot problems before they affect your business. Most IT
> organizations don't have a clear picture of how application performance
> affects their revenue. With AppDynamics, you get 100% visibility into your
> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics
> Pro!
> http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk
> _______________________________________________
> python-control-discuss mailing list
> pyt...@li...
> https://lists.sourceforge.net/lists/listinfo/python-control-discuss
>



-- 
René van Paassen        | ______o____/_|     Ren...@gm...
                       <[___\_\_-----<               t: +31 15 2628685
                        |  o'                   mobile: +31 6 39846891