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Which control s/w package should we be using BLDC, FOC, or MOTION?

Ashley Bryant
Prodigy 90 points

We have two BLDC motor control requirements:

  1. Speed control of BLDC motors that drive ducted-fan propulsion units.
  2. Position control of BLDC motors that drive gimbal motors for pan, tilt and rotation operations.

The ducted-fan drive motors have a typical speed range of 0 to 15,000RPM and a load/torque curve derived from the ducted fan load which is based upon a (power absorbed)2/3 law. I need to have maximum motor efficiency across the entire operating range of the motor and the load may vary depending upon wind conditions.

The BLDC gimbal motors require position control and are star wound and PWM controlled. The maximum angular rotation is 180o and absolute position control is required.

  • 0
    TI__Guru** 119680 points

    Hi, Ashley

    For #1 I would start with InstaSPIN-MOTION without question.

    For #2, none of the solutions you are looking at have position control added...yet.  But if you look at IntsaSPIN-MOTION you will see that it essentially has everything you need to do position control if

    1. you add another SpinTAC controller to feed the SpinTAC speed control loop

    2. you add a mechanical sensor for absolute position detection (there is a lab which shows using a non-absolute encoder in parallel to the FAST software sensor for sensored based speed control....you can build on this quite easily.

    I'm also going to move this thread to the InstaSPIN forum (a sub-forum of the C2000 MCUs).

  • 0
    Guru 12800 points

    Ashley,

    My company, LineStream Technologies, developed the technology behind InstaSPIN-MOTION.  We would love to chat with you about your applications.  If you could send me an email to setup a time to speak that would be great.

    I can be reached at adam@linestream.com

    Thanks