Hi everyone,
i have read the InstaSPIN BLDC , spin any BLDC motor.
I would like to know how to use the program instaSPIN BLDC to spin a BLDC motor of 500W.
I know some parameters of this electric motor.
Best Regards,
Dario DEtomaso
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Hi everyone,
i have read the InstaSPIN BLDC , spin any BLDC motor.
I would like to know how to use the program instaSPIN BLDC to spin a BLDC motor of 500W.
I know some parameters of this electric motor.
Best Regards,
Dario DEtomaso
InstaSPIN-BLDC does not require any motor parameters. It allows you to tune the commutation point based on an integrated Bemf voltage (flux) value. You can then tune a current and speed loop for a typical sensorless BLDC trapezoidal commutation control technique.
This is explained in all the documentation, training videos, and user's guides (in controlSUITE associated with your kit).
Considering you have other posts about using InstaSPIN-FOC though I don't know why you are looking at -BLDC. -FOC is much more appropriate for an e-Bike as it can run at MUCH lower speeds. The challenge will be in smooth start-up under load (or even worse under brake). Our new IPD_HFI library can assist with this, but most e-bike motors are not salient enough to allow the IPD_HFI to track under maximum current / torque demand.
Hi Chris,
can you better explain this sentence :
"This allows you to synchronize the forward control output with the current speed of the motor for smoother transitions"...
thanks for your support
Dario Detomaso
Hi,
I never heard about this topic: flying start for BLDC / PMSM motor
Can you give me the link of the forum ?
I need to read up on this issue.
Is this question similar to "flying start induction motor" ?
Thank you for answer
D Dario
HI,
I need to understand the theory of this thing.
Can you recommend something to read about?
A book or pdf file?
I hope you can help me
thank you very much
Best regards,
Dario Detomaso
Hi Chris,
I would understand this question. Can you pass something to read.
Unfortunately I'm in trouble...
I hope in your help...
If you want , i can give you my email
thanks again for your answers....
Best Regards,
Dario Detomaso
there is documentation in the controlSUITE project:
C:\ti\controlSUITE\development_kits\DRV830x-HC-C2-KIT_v105\~GUI
C:\ti\controlSUITE\development_kits\DRV830x-HC-C2-KIT_v105\InstaSPIN_BLDC\~Doc
there is also a Lab specific to the GUI:
http://www.ti.com/litv/pdf/sprabn7
and several videos
http://www.ti.com/ww/en/mcu/instaspin/support_community.shtml
you have to figure these out for your motor and how you want your system to behave.
the Flux threshold is most important. This is discussed in the on-line lab I linked. It shows you how to tune.
the start-up and ramp features are advanced features that may not even be required. try it without first.
the Current and Velocity settings are for if you add inner control loops in build levels 6, 7, and 8
Dario Detomaso said:What happens if I put a wrong value of flux threshold in the Gui ?
the motor will just run a bit poorly. you will be either commutating too soon or too late
Dario Detomaso said:I do not want to damage the kit.
the only way to damage the DRV8301 EVM is to allow too high a bus voltage
Dario Detomaso said:I hope someone was able to change level 2 to run a different motor from NEMA17.
yes, many people have done this
I still question why you are spending time on this...if HALL + BLDC is your final solution why not just start with that project? or use InstaSPIN-FOC. Really isn't much reason to use InstaSPIN-BLDC IMO.
the reason is simply
I have a BLDC motor with hall sensors. Last month I used instaSPIN FOC to spin this motor.
Now for my application the boss asked me to use a trapezoidal control with sensors/sensorless.
then: InstaSPIN BLDC .
thank you for your support