How to make Motor Power Loss Map from efficiency map ?
9 views (last 30 days)
Show older comments
Hello Everyone,
I have a question to ask regarding the motor powerloss map.
I have motor efficiency map and I am trying to build its power loss map. So the question I used to prepare powerloss map is
PowLoss = (2*pi*N*T/60)*(1 - (Eff/100))
This formula is simple to understand when Motor efficiency map is given. This is how I plot the results
surf(Motor_RPM,Motor_Trq,Eff') % Plot Motor Efficiency Map
surf(Motor_RPM,Motor_Trq,PowLoss') % Plots Motor Powerloss Map
My question is that there are certain points where motor will never operate such as outside its motor curve. So how do I calculate my powerloss outside motor map ? Because this formula calculates the powerloss as matrix function which results in very large powerloss and it does not seems to be possible given the capacity of motor.
I have attached one Motor Map also with this question.
Thanks in Advance
0 Comments
Answers (1)
KSSV
on 26 May 2022
load('Motor_Map.mat') ;
figure
h1 = pcolor(Motor_RPM,Motor_Trq,Eff') ; % Plot Motor Efficiency Map
h1.EdgeColor = 'none' ;
idx = isnan(Eff) ;
PowLoss(idx)= NaN ;
figure
h2 = pcolor(Motor_RPM,Motor_Trq,PowLoss') ; % Plots Motor Powerloss Map
h2.EdgeColor = 'none' ;
See Also
Categories
Find more on Motor Drives in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!