Omar Naifar

4 Questions 12 Answers 0 Followers

Questions related from Omar Naifar

Positiveness of the Mittag leffler function ?

Please see the image attached. If it is true, how can we prove it mathematically ? otherwise, give a counterexample which demonstrate the invalidity of the proposed preposition.

21 June 2016 902 4 View

Does the convergence of the output error imply the convergence of the state error ?

Consider an observable system and consider a Lyapunov function which is definite positive in the output space (see image). does the convergence of the output error imply the convergence of the...

24 May 2016 8,567 7 View

The assumption "The pair (A,B) is controllable" is it necessary ?

it is well known that the controllability assumption is used for stabilizability reasons. Can we guarantee the stability of a feedback controlled system without using controllability...

08 April 2016 5,393 8 View

Has the stator resistance estimation a technical signification when we deal with electrical machine (with high power)?

It is well known that the the mechanical speed control requires a specific estimation of the flux which is dependent on the IM stator resistance. As a consequence, this estimation may face some...

25 May 2015 1,255 5 View