%CODE
function out = fcn(V, I, Vo, Io, d, step)
dv = V – Vo;
di = I – Io;
if(dv == 0)
if(di == 0)
out = d;
else
if(di > 0)
%increase duty cycle
d=d-step;
else
%decrease duty cycle
d=d+step;
end
out = d;
end
else
if(di/dv == -(I/V))
out = d;
else
if(di/dv > -(I/V))
%decrease duty cycle
d=d-step;
else
%increase duty cycle
d=d+step;
end
out = d;
end
end
%CODE
We have this model for Inc Cond for solar panel MPPT project. The code is also provided for the block, our output used to be perfect when our power gui was set to 1e-7 but our other models are using 1e-6 and we have tried messing with the step size constant to no avail. We are unsure what is going on, if it is relevant we are using a synchronous buck converter for the output of our solar panel.%CODE
function out = fcn(V, I, Vo, Io, d, step)
dv = V – Vo;
di = I – Io;
if(dv == 0)
if(di == 0)
out = d;
else
if(di > 0)
%increase duty cycle
d=d-step;
else
%decrease duty cycle
d=d+step;
end
out = d;
end
else
if(di/dv == -(I/V))
out = d;
else
if(di/dv > -(I/V))
%decrease duty cycle
d=d-step;
else
%increase duty cycle
d=d+step;
end
out = d;
end
end
%CODE
We have this model for Inc Cond for solar panel MPPT project. The code is also provided for the block, our output used to be perfect when our power gui was set to 1e-7 but our other models are using 1e-6 and we have tried messing with the step size constant to no avail. We are unsure what is going on, if it is relevant we are using a synchronous buck converter for the output of our solar panel. %CODE
function out = fcn(V, I, Vo, Io, d, step)
dv = V – Vo;
di = I – Io;
if(dv == 0)
if(di == 0)
out = d;
else
if(di > 0)
%increase duty cycle
d=d-step;
else
%decrease duty cycle
d=d+step;
end
out = d;
end
else
if(di/dv == -(I/V))
out = d;
else
if(di/dv > -(I/V))
%decrease duty cycle
d=d-step;
else
%increase duty cycle
d=d+step;
end
out = d;
end
end
%CODE
We have this model for Inc Cond for solar panel MPPT project. The code is also provided for the block, our output used to be perfect when our power gui was set to 1e-7 but our other models are using 1e-6 and we have tried messing with the step size constant to no avail. We are unsure what is going on, if it is relevant we are using a synchronous buck converter for the output of our solar panel. mppt, simulink, inccond MATLAB Answers — New Questions

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