MATLAB Simulation of Higher Order Sliding Mode Control with Optimal Reaching

[@hoytvolker3]

Perfect prof. Ali Nasir

[@timbangpangaribuan2785]

Thank you for your paper and lecture. Now I try to learn sliding mode control with MATLAB.

[@saifh9034]

Great video !! I hope you make for other types of sliding mode controllers please make more.

[@cset]

kzbin.info/www/bejne/h2fdk5WBes2onqM

[@arnabmapui9244]

Thank you sir.. keep on great work

[@afish3356]

Really great video, thank you so much!

[@DannyPalepogu]

Thank you so much sir , this helped me a lot

[@damodharsia2262]

Really great vedio sir can this concept be applied on any non linear system?....hosmc is good as compare to SMC.

[@techzila5379]

I think can be applied

[@leyaozou1696]

hi！thank you for your teaching first.❤I have a question want to ask you. If the variable sdd contains the variable u, how can I do in the matlab. Because the sdd is defined earlier than the u, matlab can’t use the undefined variable. 😢

[@cset]

Since u is a function of x. It should be possible. For example, if u = 5x_1 + 2x_2, and sdd = 2u, then technically, sdd = 2(5x_1 + 2x_2). The problem arises when sdd = u and u = sdd (without involving x).

[@leyaozou1696]

​@@cset thank you for replying. I still want to ask that the example expression of u = 5x_1 + 2x_2 you write here, does the u derive from the state-spacemen of the system? cause the paper you introduce in this video, the u is U_OR, is it not a fixed expression？

[@leyaozou1696]

And in the specific work what I make, the expression sdd contains u, u also contains sd, sdd (cause I used the u = U_OR expression shows in the paper), so Matlab dose not run. I really confused about it. Two of the state-spacement of the controlled system are : dx1 = x(3); dx3 = SS.A * u + SS.B * x(3). So, how can I get u? This question confuses me many days, I really appreciate if you can give me some help.@@cset 🥰🥰🥰

[@cset]

@@leyaozou1696 U_OR is composed of a complicated expression that uses sigma, sigmadot and sigmadotdot. These sliding surfaces (sigma) are composed from the state space. So U_OR is a function of states. In the paper discussed, sigmadotdot in u does not include u in its expression so there is no isuue.

[@cset]

@@leyaozou1696 I am not sure how you obtained your sd and sdd. You cannot apply this control without understanding the basics of the sliding mode control. The fundamental guideline in the sliding mode control design is to choose the sliding surface s such that sd contains u and then your u contains s only (not sd). Similar logic has been extended in the paper discussed in the video where s is designed such that u appears in sddd whereas in the expression of u only s, sd, and sdd are used (not sddd). You have to revisit the mechanism of your design.

[@arnabmapui9244]

sir if their is some intrgration from 0 to t of x(1), in sliding surface , then how could we define that, please let me know , as I am stuck in there in a problem when solving by sliding mode control.

[@cset]

Please refer to the following video for adding the integration state in the ode function kzbin.info/www/bejne/l6uuYYeDa9h8iZI The trick is to define the contents inside the integral as the derivative of a new state variable

[@lifesgood5665]

sir plz bring some video on fractional order sliding more controller plzzzz

[@gantasettyvishwateja2691]

Hi Sir , I am doing sliding mode controller for coupled tanks.I have done matlab simulation for it.But I am not getting the graph for it.Can you help me in this topic ?

[@saifh9034]

Can you please do for another paper

[@cset]

Yes, soon insha’Allah

[@Randomvideoscollection790]

When I try to implement the same code in my Matlab I don't get any graph it just shows values in across x and y-axis and there is waring aw well that you're missing imaginary part. can you upload your Matlab code file here??

[@cset]

Please send me an email at [e-mail] mentioning the relevant video and I will send you the files in reply.

[@mohamedmailbi9694]

Hello, I want you to help me. I have a sliding mode control PMSM simulink model, but the results are not what I want, I don't know the problem, I want to send you the model to find a solution to this problem please

[@cset]

I cannot help on that level since there is hardly any spare time in my schedule. However, if there is a specific research paper related to the control systems that you want me to explain, I might consider that.

[@honesttalks4149]

@@cset Sir I need your help on my paper. Kindly please when you are free we can talk on ZOOM would be thankful

[@cset]

@@honesttalks4149 okay, maybe we can talk for some time on Saturday. Send me an email ([e-mail])