My asynchronous motor goes into negative RPM when I increase the torque

When I increase the torque load on my asynchronous motor the motor speed (RPM) goes into decline. When operating under '0' load the motor functions correctly. Has anyone else ever had this problem?

The motor is fed via a rectifier, inverter which I have built.

Thanks

[Vyshnav Menon]

Check the switching sequence of the vsi drive. Then play with the torque value Tm to find the right value for the particular motor specification.

[Vyshnav Menon]

Else the torque value is more than , the rated value.

Answer 1

[erfan komeili]

Hi, you should increase the value of "J" or decrease the desired torque of motor. It is a kind of overload rotating motor in opposite direction.

I hope it would help.

[Subodh Khandelwal]

I am using a predefined motor parameters provided by the MATLAB. Even at 0 Tm, my motor is giving a negative RPM

[maha goda]

I have the same problem

[Hassan Ali]

I'm currently facing the same problem, how do you solved it?