I having trouble to simulate bldc Motor for 4 poles......can you please tell me

I have a real 48V 750W bldc Motor with me....and it's rpm is around 2800 rpm....when I simulate the bldc Motor with 4 poles (which I have seen in your YouTube channel... which was very helpful and very good) and when I run it the rpm is 410rpm only Can u please help me

Answer 1

[Joel Van Sickel]

Hello Sai,

the issue could either be how the motor is paramaterized, or how the circuit driving the motor is set up. Is the controller switching at the appropriate times and does it have a high enough DC voltage? Is the mechanical load or the mechanical losses too high? There a number of potential issues that can't be known without seeing both the motor data sheet and the simulink model.

Have you tried modifying this example to match your system parameters?

https://www.mathworks.com/help/physmod/sps/examples/bldc-speed-control.html

Regards,

Joel