Try This:
Code:I2=5.42; R2=.8; s=.02; wr = 0:50; torque=(3./wr)*(I2^2)*(R2/s)*(1-s); plot(wr,torque) xlabel wr ylabel T title('Torque Plot')
Hello everyone
i v just joined the forum and i would like u to give me some sort of help in my induction motor project
i am using matlab to carry out the value for torque and then plot the torque Vs speed graph using matlab
so i am given the parameters
I2=5.42A
R2=.8Ω
to carry out the torque values for (rotor speeds(wr)=from 0-50rad/s)
knowing that slip=s=0 when wr=50rad/s
and slip=1 when wr=0
Torque=(3/wr)*(I2^2) * {R2(1-s)/s}
To sum up i want to produce a torque speed plot using matlab
i suppose that i can do that using for loop
i think that it is not hard but i am not that good in matlab
here is my little attempt
for I2=5.42
for R2=.8
for s=.02
torque=(3/wr)*{(i2)^2}*{(r/s)*(1-s)}
plz help!
torqueplot
Sorry but I think that did not put the problem in the proper way
In fact torque should be calculated for different speeds and slips
(Not only different values of speed!)
So
given
R2=.8ohm
Rt=1.2ohm
Lt=2.2ohm
L2=3 ohm
s = (ws-wr) / ws , where ws=synchronous speed and wr=rotor speed
i2=formula in photo
torque=(3./wr)*(I2^2)*(R2/s)*(1-s
Also current cannot be one constant value
It should be calculated accordingly to slip values, so for each slip value we should have a value for current
To sum up , I think that we should use for loop to carry out values of slip ,corresponding speed ,and corresponding current on a range of values to create the proper plot
If the code is correct we must end up with the graph shown in the attachment
I will be thankful if u would help me
Many thanks
If you provide some code, even if it just a simple example calculation then someone will help you create the graph in MATLAB. I say this because it is difficult to understand the equations you posted up.
Also try to use code tags in your posts where appropriate. It makes reading code a lot easier.
ElbartoCode:look for the # symbol on the toolbar