Jun 15, 2020
09:53 PM
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Jun 15, 2020
09:53 PM
Hi,
I am try to start BLDC in range of voltage from 150VAC to 240VAC. But i usually have to tune some parameter to start the motor.
What is the best way to tune the best parameter to start the motor in variety of voltage?
I am try to start BLDC in range of voltage from 150VAC to 240VAC. But i usually have to tune some parameter to start the motor.
What is the best way to tune the best parameter to start the motor in variety of voltage?
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5 Replies
Jun 16, 2020
10:03 AM
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Jun 16, 2020
10:03 AM
huyrua291996 wrote:
Hi,
I am try to start BLDC in range of voltage from 150VAC to 240VAC. But i usually have to tune some parameter to start the motor.
What is the best way to tune the best parameter to start the motor in variety of voltage?
Hello, I would use MCEWizard to generate a parameter text with the parameters you would like. Here you can set the DC Bust over-voltage and under-voltage level.
Jun 16, 2020
06:52 PM
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Jun 16, 2020
06:52 PM
Hi Casey,
I have already set DC bus under and over voltage. When switching from 220VAC to 150VAC, I always have to modify some params to make the motor start, which is inconvenient when it comes to fan applications
I have already set DC bus under and over voltage. When switching from 220VAC to 150VAC, I always have to modify some params to make the motor start, which is inconvenient when it comes to fan applications
Jun 18, 2020
10:12 AM
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Jun 18, 2020
10:12 AM
huyrua291996 wrote:
Hi Casey,
I have already set DC bus under and over voltage. When switching from 220VAC to 150VAC, I always have to modify some params to make the motor start, which is inconvenient when it comes to fan applications
Normally the inverter output should not be affected by the DC bus voltage thanks to DC bus compensation. What are the parameters that need to be tuned at different input voltage conditions? What is the start-up method used? A script can be used to load up different parameter values but this shouldn't be required as I think its just a tuning issue.
Jun 18, 2020
06:28 PM
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Jun 18, 2020
06:28 PM
Thanks Casey, I got it. I use intial angle sensing to start-up.After serveral times tuning, I realize my flux estimator time constant was not good enough and finally I found the best one. In addition, I used script to adjust a little bit KpSreg value
Jun 22, 2020
01:12 PM
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Jun 22, 2020
01:12 PM
huyrua291996 wrote:
Thanks Casey, I got it. I use intial angle sensing to start-up.After serveral times tuning, I realize my flux estimator time constant was not good enough and finally I found the best one. In addition, I used script to adjust a little bit KpSreg value
Glad to hear!