HBL16xx as voltage rectifier/regulator for 3-phase generator ?

5 years 1 month ago #29531096 by Bobbylebob
Hi All,

I'm working on a project where we want to use a standard BLDC motor as a 3-phase generator powered by a gasoline engine. This BLDC motor would be use as a motor for starting gas engine then revert back to its generator function.

A BLDC controller like HBL16xx should do the job but I'd like some confirmation from experts.

Normally the regenerative mode injects current in a battery on DC bus. In my case, the battery would only be present at startup and removed after gas engine starting. Thus, the HBL16xx should be able to regulate its DC bus voltage. From what I understand, it seems that it could be possible by directing dc bus voltage image in an analog input a do some kind of script, do you confirm?

Do you have some similar experience of such application ?

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5 years 1 month ago #29531098 by roboteq
It can be done and we have assisted several users with similar projects.

Pls take a moment to read this application article. The techniques described are applicable to your application. dev.roboteq.com/dev1/index.php/applicati...l-time-speed-sensing

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5 years 3 weeks ago #29531148 by Bobbylebob
Thanks for your helping answer.

I intend to use a very high pole number motor (28-poles) running at 7500 rpm, which gives 210 000 electrical RPM. Does this model can handle such commutation frequency ? I can't find the information in the documentation...

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5 years 3 weeks ago #29531173 by Bobbylebob
Up :-) What is the maximum electrical RPM frequency that HBL16xx can handle ?

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5 years 3 weeks ago #29531174 by roboteq
The Hall->Output switching is hardware based and happens witin 1us. So there is practically no limit.

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