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wanglipeng00000
Level 2
Level 2
10 questions asked 25 sign-ins 10 likes given

Hi, I am design a PMSM motor controller, and I have a question, Does the PMSM controller need DC-bus ripple compensation? 

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Owen_Su
Moderator
Moderator
Moderator
250 solutions authored 500 replies posted 50 likes received

Hi, @wanglipeng00000 ,

    Yes, the PMSM controller typically requires DC-bus ripple compensation. Because the DC-bus voltage ripple can affect the performance and lifespan of the motor. The DC-bus voltage ripple can cause torque ripple, which can lead to vibration and noise in the motor.

    To compensate the ripple, capacitors are usually added to the DC-bus to smooth the voltage and maintain stability. This can be achieved by adding additional capacitance or other inductor components to reduce the ripple. Hope this can help you.

BR,

Owen

    

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Owen_Su
Moderator
Moderator
Moderator
250 solutions authored 500 replies posted 50 likes received

Hi, @wanglipeng00000 ,

    Yes, the PMSM controller typically requires DC-bus ripple compensation. Because the DC-bus voltage ripple can affect the performance and lifespan of the motor. The DC-bus voltage ripple can cause torque ripple, which can lead to vibration and noise in the motor.

    To compensate the ripple, capacitors are usually added to the DC-bus to smooth the voltage and maintain stability. This can be achieved by adding additional capacitance or other inductor components to reduce the ripple. Hope this can help you.

BR,

Owen