how to take the value of Tm for a synchronous motor ?

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Maheswari Vayara 2020-8-6

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回答： Maheswari Vayara 2020-8-6

hi,

I want to control the speed of the motor,by using the spwm technique we can vary the frequency but i am getting the negative pulses .As the rotor speed is constant i am getting sinusoidal pulses.could u please help me with this problem

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Answer 1

Maheswari Vayara 2020-8-6

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https://ww2.mathworks.cn/matlabcentral/answers/576025-how-to-take-the-value-of-tm-for-a-synchronous-motor#answer_476011

hi

I want to control the speed of the motor.For this i am using the spwm technique ,by changing the frequency of the pwms we control the speed,as speed is directly proportional to supply frequency .As i am using the synchronous motor there is a Tm i don't know how to calculate the mechanical torque of synchronous motor.