About motor noise sound

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kkkkjeong
Level 3
Level 3
5 likes given First solution authored First like received

Hi I'm running a compressor motor.
Some compressors can operate well without problems, but the current compressor shows a motor current waveform as shown in the picture below.(U phase)
The compressor motor produces a lot of noise.
Which parameters should I modify?
Current waveforms have different peak values by repeating peak values.(Unusual)

I also attach the MCEWizard file.
Please check.
Thank you.

kkkkjeong_0-1681977360822.png

kkkkjeong_1-1681977365242.png

 

 

 

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1 Solution
Viswa
Moderator
Moderator
Moderator
10 likes received 50 solutions authored 100 replies posted

Hi @kkkkjeong 

 

In general, the odd combinations of pole and slot pairs may cause some noise.

We request you to follow the methods proposed in section 4.6 Reducing Acoustic noise of the

iMOTION software reference manual.

 

Best Regards

View solution in original post

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4 Replies
Viswa
Moderator
Moderator
Moderator
10 likes received 50 solutions authored 100 replies posted

Hi @kkkkjeong 

 

By looking at the waveforms, we understand that the waveforms are quite oscillatory.
Please provide identification for the signals provided in the attached waveforms. 

Primarily this could be because of the wrong motor parameter configuration.
We recommend you to tune the motor parameters once again with the help of the attached document.

How to Measure Motor Parameters

Best Regards,

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PCB : EVAL-M3-IM564

kkkkjeong_0-1681979030724.png

 


ch1 : U-V Voltage
ch2: DC LINK
ch4: U-Current

The parameters of the motor are based on the contents provided by the motor company.
But I will check the part that can be checked one more time.
Thanks

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Checked the motor parameters.

One thing that comes to mind is the pole of the motor.

6 electrodes 9 slots concentrated winding

6 pole 9 slots, can this be a problem?


Best Regards,

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Viswa
Moderator
Moderator
Moderator
10 likes received 50 solutions authored 100 replies posted

Hi @kkkkjeong 

 

In general, the odd combinations of pole and slot pairs may cause some noise.

We request you to follow the methods proposed in section 4.6 Reducing Acoustic noise of the

iMOTION software reference manual.

 

Best Regards

0 Likes