Sliding mode control simulink

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KAI DONG 2022-11-29

评论： KAI DONG 2022-11-29

Hello!

Herewith my simulation and example from Book 'sliding mode control and observation'(Yuri Shtessel)

I try to get similar pic, but i do not know where is my problem.

I set fixed-step as 0.0001 for reaching phase. scope shows zero always.

thank you for your any suggestions.

Paul 2022-11-29

Hi KAI,

Do any of the integrators have a non-zero initial condition?

Also, might want to consider using a variable step solver, which will do a better job of catching the sign changes in the input to the Sign block.

KAI DONG 2022-11-29

actually, from pic attached, I can see X1(0)=0.5. but i tried, I did not get the right pic. so sad. thank you for your kind help

KAI DONG 2022-11-29

Thank you. I found my problem. many thanks

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