Power measurement (electric motor)

I have a three phase motor model simulation within Simulink (equation-based) and no Simscape is used. I need to measure the power consumed by electric motor during simulation runtime - Active power, Reactive power, Appreant power and its power factor.

Is there already a Simulink block or simple way to measure the electric power vs. mechanical power?

[Jack Daniels]

Thanks for suggestion,

Is it applicable for non-simscape motor models as well?

In the case of comparison to the motor mechanical power. Is there some mechanical power measurement block (Pmech=Te*wr) ?

In the case 3-phase system then the complex power measurement block can be modify to have the input signals preceded by sum of phase voltages respectively phase currents:

• V (votlage input signal) V = v1(t) + v2(t) + v3(t)
• I (current input signal) I = i1(t) + i2(t) + i3(t)

Answer 1

[MULI]

Hi @Jack Daniels,

To measure the active power, reactive power, apparent power, and power factor for your three-phase motor simulation in Simulink, you can refer to this model:

https://www.mathworks.com/matlabcentral/fileexchange/58272-complex-power-block

This model tells you to how to calculate electrical power parameters for a voltage-current pair at the fundamental frequency.