inductance, how to simulate in matlab??

[madeza]

matlab inductance

hi everybody

I'm trying to plot or show the instantaneous power on inductance...
I use a sine voltage v=100cos(wt) and L=50mH
this is the code I've entered in Matlab

t=0:0.00001:0.1;
v=100*cos(377*t);
x=2*pi*60*50E-3;

since PL=VmIm(sin2wt) and Vm=wLIm w=2Πf
I'll try to use the following eq. PL=((V^2)/wL)sin(2wt) to plot but no results...

I mean I want to plot the instantaneous power, the voltage and the current...

Do you have any idea...
thank's in avanced...

 

[nael_ee]

Dear,
do not think that the eq. posted for the power calculation is correct,
PL = v^2*sin(2*W*T)/WL where v is the Vm of the sin by following code is working, please check it.
t=0:0.00001:0.1;
w = 377;
L = 50E-3;
Vm = 100;
V=Vm*cos(w*t);
PL = Vm.^2.*sin(2*w*t)/(w*L);
plot(t,PL)
hold
plot(t,v)

hope it to be useful