Unrecognized function or variable 'P_v'. Solutions please!!!
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%Datos base
clear all;
close all;
f1=50;
T1=1/f1;
td=0;%tiempo muerto
Modulation=0;%SPWM=0 CB-SPWM=1
control=0;%control =0: n y N aislados; control =1: n y N conectados
%%%%%%%%%%%%%%%%%%%%%%%
mf=21;%Para ver el efecto de los tiempos muertos poner un mf elevado (101) por ejemplo
ma=0.5;%Indice modulación en amplitud
Ts=1/(f1*mf);
Tsample=Ts/200;%para el step máximo de simulación
Vector_pico= (301:321:5);
for i=1:length(Vector_pico)
Vpico=Vector_pico(i);
sim('Actividad_6');
P_vec(i)= P(end);
Q_vec(i)= Q(end);
end
%Representación
figure(1)
plot(Vector_pico, P_vec);
tittle('Variacion de Potencia activa con diferente desfase');
xlabel ('Potencia activa');
ylabel ('desfase');
figure(1)
plot(Vector_pico, Q_vec);
tittle('Variacion de Potencia reactiva con diferente desfase');
xlabel ('Potencia activa');
ylabel ('desfase');
-----------------------------------------------------------------------------------------------------
THIS IS THE ERROR!!!
Unrecognized function or variable 'P_vec'.
Error in actividad6 (line 31)
plot(Vector_pico, P_vec);
回答（1 个）
Walter Roberson
2020-2-2
Vector_pico= (301:321:5);
That is a vector that starts at 301, and has an increment of +321, and has an upper bound of 5 . Because the upper bound is less than the lower bound and the increment is positive, the vector is empty.
Vector_pico= (301:5:321);
would be a vector that started at 301, had an increment of 5, and an upper bound of 321. It would have the values [301, 306, 311, 316, 321]
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2020-2-2
2020-2-2
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