use of timer for simulating voltage regulator

Question

Umberto 2013-3-27

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/68842-use-of-timer-for-simulating-voltage-regulator

回答： Sabin 2024-1-22

Hello everybody! I need to simulate a voltage regulator: in this system voltage has to be regulated if it's out of tolerance for more than 30 seconds. If voltage returns to the correct range the timer has to be stopped. I wrote this code

function simulation
% parameters
Vnom =      3850;    
s =         0.01;         
delay =     30;       
g =         50;           
n =         1000;           
Vmin =      Vnom*(1-s);
Vmax =      Vnom*(1+s);
V = xlsread('data.xls', 1, 'C2:C1002');      %import data from Excel
t = timer('Period', delay, 'TimerFcn', calculate(V, g, n, Vmin, Vmax));
function  calculate
for i=1:n
   if V(i) < Vmin
       start(t);
       if "30 seconds are passed"
            V(i) = V(i)+ g;
       end
   elseif V(i) > Vmax
       start(t);
       if "30 seconds are passed"
            V(i) = V(i)- g;    
       end
   elseif (V(i) >= Vmin && V(i) <= Vmax)
       stop(t);
   end    
end 
xlswrite('data.xls', V, 1, 'E2:E1002');