Passivity-Based Control to Guarantee Stability | Control Systems in Practice

Learn about passivity-based control to guarantee closed-loop stability of feedback systems. Consider different ways to assess the stability of systems other than looking at gain and phase margin.
Control System Toolbox: bit.ly/3LyCeHa?s_eid=PSM_15028
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[@danstiurca7963]

You are doing a great service to the engineering community with these excellent videos.
These are definitely interesting ideas beyond the standard control system approaches.
Thank you. :)

[@divyabhatia9916]

Very nice explanations. Thanks.

[@Pedritox0953]

Wonderful video !!

[@makkanelectronics]

Great work✌👍

[@melakuhaile1461]

thank you for this excellent explanation. Excuse me, please help me about optimization and modelling

[@jochenillerhausji]

The promised link seams to be missing... also thanks for the nice summery

[@sandmaster4444]

Can you post the resource links!?

[@alonspinner4838]

How can you ensure passivity in a real system if it holds some non-negligible transport delay? From my understanding, there is no way the Nyquist plot won't dip into the left half-plane.

[@alexanderskusnov5119]

You should decrease the gain.

[@BrianBDouglas]

Hi Alon, I responded to this a couple days ago with a link to an example with delay but it looks like TH-cam blocked it. So, if you Google "Passive Control with Communication Delays" you'll find a MATLAB example that shows you how to deal with some transport delays. I hope that helps!

[@alonspinner4838]

Thanks for the answer. I found your article which was great 👍

[@oldcowbb]

so basically energy in Lyapunov sense?

[@elburgos666]

Seems like it according to Wikipedia. I guess "passivity" means a strictly stable system (all poles in LHP). For a controller, that would mean no integral action. A controller with no integral action would be useless for regulating systems, unable to compensate por peristent disturbances. So I guess no I in a PID.

[@nyquist_control]

so... what is my system is not passive?

[@elael2]

Great video!
The sad part is that in the real world stability isn't enough. We have to make sure the controller/controlled system will respect the limits of the components.