Adaptive Sliding Mode Control

Youtube: Adaptive Sliding-Mode Control for Boost DC–DC Converters: MATLAB Implementation

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Adaptive Sliding-Mode Control for Boost DC–DC Converters: MATLAB Implementation

Link: https://www.youtube.com/watch?v=u2nr0O2aitc

function [u,s,dx1,dx2,dv1,dtheta] = SMC(x1,x2,Vref,x1_e,x2_e,V1_e,theta_e)
%%Total sliding mode control
L=180e-6;
C=150e-6;
R=40;
iref=Vref^2/(R*60);
K1=883*5;
K2=883*5;
K=[K1 K2];
Lemda1=200;
Lemda2=250;
eps = 1e-6; % <-- Thêm hằng số epsilon

s=x1_e-Vref^2/(V1_e + eps)*theta_e; % <-- Đã sửa V1_e

u=1-(V1_e+K1*L*(x1-x1_e)+Lemda2*L*Vref^2/(V1_e + eps)*x2*(x2-x2_e)+Lemda2*L*Vref^2/((V1_e + eps)^2)*theta_e*(x1-x1_e))/(x2_e + eps); % <-- Đã sửa V1_e và x2_e

if u<0
    u=0;
end
if u>0.95
    u=0.95;
end
dx1=-(1-u)*x2_e/L+V1_e/L+K1*(x1-x1_e);
dx2=(1-u)*x1_e/C-theta_e/C*x2_e+K2*(x2-x2_e);
dtheta=-Lemda1*x2*(x2-x2_e);
dv1=Lemda2*(x1-x1_e);
%D=1-u;
end