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Using InstaSPIN on a Linear Motor

Philipp L.
Intellectual 795 points

Other Parts Discussed in Thread: MOTORWARE

Dear e2e-team,

Is it possible to use InstaSPIN FOC&MOTION on a 3phase (permanent magnet) linear motor?

I don't have a real specification yet, so this question is quite general.. I think at first we will do some basic positioning on a linear motor, which would be about half a meter long. Probably with a position sensor.

Do you have any experience on this motor type?

Thank you very much!

Philipp

  • 0
    Guru 12800 points

    Philipp,

    I'll let Chris speak to InstaSPIN-FOC, but I see no reason that InstaSPIN-MOTION wouldn't work with a linear motor.

    The position software assumes everything in terms of rotations, but that should be able to be converted into the appropriate amount of linear motion.  

    I don't have much experience with this type of motor, but I'm confident it can work.

  • 0
    TI__Guru** 119680 points

    FAST has been used for sensorless rotor flux observer of linear motors, but it typically wouldn't be used in this specific type of application as exact position and slow speed motion is required.

  • 0 in reply to ChrisClearman
    Intellectual 795 points

    So, Chris, you would recommend not using FAST, but the InstaSPIN-library with a position sensor, and InstaSPIN MOTION on top of that..?

    Thanks to both of you for those quick answers!

    Philipp

  • 0 in reply to Philipp L.
    TI__Guru** 119680 points

    correct. InstaSPIN-MOTION is appropriate. You will work through the MotorWare labs (the sensorless InstaSPIN-FOC labs will still help you ID and autotune the current controllers) but eventually you will end up basing your project off of proj_lab13x for position control.