To simulate the back-EMF voltage of a BLDC motor in Simulink, In this simulation how to find the RPM from the given Ideal Angular velocity so i would find constant K

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Gajan 2025-1-2

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回答： Joel Van Sickel 2025-1-8

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Mr. Pavl M. 2025-1-2

编辑：Mr. Pavl M. 2025-1-3

Good, normal question to find correct only answer.

What is the physical sense of K?

What if a PMSM to place in place of a BLDC?

To find RPM from given ideal angular velocity, which corrective factors?

EMF*angle/(Charge*R) = omegan; %in rad per second

EMF = rps*Charge*R/angle;

EMF = rev_per_sec*Charge*R/revolution;

I have an implemented function script of a general speciafiable non-linear system ordered construction of parameters and a few more components to deliver upon transfer, immigrate me with things,luggage.

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Joel Van Sickel 2025-1-8

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https://ww2.mathworks.cn/matlabcentral/answers/2172626-to-simulate-the-back-emf-voltage-of-a-bldc-motor-in-simulink-in-this-simulation-how-to-find-the-rp#answer_1557129

this is the correct setup, although a real motor is likely to behave very differently at the extremes such as open and short circuit than a traditional simulation using d/q frame if non-linearities are not included. As you have the motor parameters already in simulation, you don't need to do a test, you can just use your paramaters of the motor, but if you are trying to mimic running a bldc as a generator to measure back emf, this is how you'd do it.