dc dc buck converter for Model predictive control

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Mohamed 2019-8-29

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https://ww2.mathworks.cn/matlabcentral/answers/478008-dc-dc-buck-converter-for-model-predictive-control

回答： Chandrakanth Pavanaskar 2022-7-14

I have designed a dc dc buck converter for the Model predictive control, but when I run the code give the right numrical output but hte graphs are not acuret, any budy can help me to fix this problem

thank you

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Chandrakanth Pavanaskar 2022-7-13

Hello,

I just saw your model, can I know how did you get the solution as the solution seems infeasible

Sam Chak 2022-7-13

在 MATLAB Online 中打开

@Chandrakanth Pavanaskar

I'm unsure, but from the mathematical perspective, the system looks 'manipulatable' with numbers without using MPC. What is the purpose of having the MPC in this case?

Vg = 15; D = 0.4; L = 2e-3; C = 10e-6; R = 100;

a = [0 -(1-D)/L; (1-D)/C -1/(R*C)];

b = [1/L 0; 0 -1/C];

c = eye(length(a));

d = [0];

sys = ss(a, b, c, d); % System in state-space model

k1 = 1;

k2 = 1;

k = [-k1/500 3/5; 0.6 (k2 - 1e3)/1e5] % Gain Matrix

k = 2×2

-0.0020 0.6000 0.6000 -0.0100

br = diag([k1/500, -k2/1e5])*b; % Rescaled Reference Input Matrix