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INSTASPIN-BLDC: BLDC motor control for speed track

Mariano
Intellectual 370 points
Part Number: INSTASPIN-BLDC
Other Parts Discussed in Thread: LAUNCHXL-F28069M, BOOSTXL-DRV8301, , MOTORWARE, CONTROLSUITE

Hi, we need to control a BLDC motor (turbine blower system to get air flow and pressure) with hall sensors in order to get fast and accurate speed track, fast acceleration (first quadrant) and fast deceleration (second quadrant); for example from 40000 rpm change to 10000 rpm in 50 ms (step down) or from 5000 rpm to 50000 rpm in 50ms (step up), or change speed up or down following a ramp.

some motor data:
Parameter    unit        typ    
Voltage    V        24    
current    A        5    
speed max    rpm        75000    

Questions:

- Is InstaSpin-Foc + InstaSpin-Motion the best solution for this application? Is Ok to buy LAUNCHXL-F28069M + BOOSTXL-DRV8301 ?

- Is InstaSpin-BLDC the best solution for this application ? Is Ok to buy LAUNCHXL-F28069M + BOOSTXL-DRV8301 ?

- InstaSpin can be used with HALL sensors?

- InstaSpin libraries can make brake with torque (2 quadrant)?

thanks


  • 0
    TI__Genius 17175 points
    The LAUNCHXL-F28069M + BOOSTXL-DRV8301 setup will allow you to evaluate both InstaSPIN-BLDC (available in ControlSuite) as well as InstaSPIN-FOC + InstaSPIN-MOTION (available in Motorware). The solution depends on your needs, whether trapezoidal or sinusoidal control is the right method for your application I cannot say. But, the combination of the two kits you mentioned will allow you to try both.

    In Motorware, we have an example lab that uses Hall sensors for startup before transition to FAST observer. You can use that example to see how we initialized and deployed the Hall sensor system to get a better understanding.

    While it is no problem to use in InstaSPIN in 2nd and 4th quadrants, you will most likely need to modify the hardware to include a brake/bleed circuit to dissipate the regen current/voltage. At this time, we do not have an example that demonstrates or supports regenerative braking.

    Sean
  • 0 in reply to Sean Bigley
    Intellectual 370 points

    thanks Sean

    At this time, we do not have an example that demonstrates or supports regenerative braking.

    do you know where i can find information about this topic ? ; regenerative braking is one of the topic critical for out application.

  • 0 in reply to Mariano
    TI__Genius 17175 points
    Regenerative braking is a common technique for motor control, you should be able to find theory and circuit designs in common motor control textbooks.

    Sean