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InstaSPIN 180V 5kW 3-phase Sensorless BLDC motor

Jayant Deshpande
Expert 1495 points

Other Parts Discussed in Thread: DRV8301, INSTASPIN-BLDC, CCSTUDIO

Hi,

I need to design a drive for a 5kW sensorless BLDC motor rated at 180V. All the development kits I have come across are rated at 60V. (e.g. http://www.ti.com/tool/drv8302-hc-c2-kit)

Please suggest how I can use the kit's control output signals to drive external 3 phase  bridge built using IGBTs rated at 75A, 600V. Do I need to modify the current sensing scheme as well?

Any alternatives other than the DRV8302-HC-C2 kit?

Thanks,

Jayant

  • 0
    TI__Guru** 119680 points
    with the current level you are using most customers would use in-line hall effect based current sense products (like those from LEM) instead of shunts.

    you can replace the DRV8301 with your own IGBT bridge of course.
  • 0 in reply to ChrisClearman
    Expert 1495 points

    Chris,

    I will soon be making my prototype board with a Piccolo F28035 running InstaSPIN BLDC code (minus the DRV8301) driving a 3 phase IGBT inverter module.

    Please suggest a low cost board which can help speed up my development time.

    Will TI review my schematics and layouts (in a private message) ?

    Thanks,

    Jayant

  • 0 in reply to Jayant Deshpande
    TI__Guru** 119680 points
    we don't have an EVM for this power level. in fact, we aren't allowed to sell anything like this.

    there is a TI Design for 22 kw inverter with IGBTs here
    www.ti.com/.../TIDA-00195 ti design&tisearch=Search-EN-Everything

    No, I'm sorry, we don't offer schematic reviews
  • 0 in reply to ChrisClearman
    Expert 1495 points

    Chris,

    Based on your reply, I have revised my approach..

    I intend to get a Launchpad and interface the PWM and other analog / digital IO to an external 3 phase inverter module. Will I still be able to use the InstaSPIN BLDC GUI with this setup?

    Thanks,

    Jayant

  • 0 in reply to Jayant Deshpande
    TI__Guru** 119680 points
    no
    1. the InstaSPIN-BLDC GUI isn't really adjustable. It is fixed to the memory map of the .out created.
    2. you can use the source project that was used to make this .out (or use the standard InstaSPIN-bldc project) but you would just use CCStudio to interface to your variables. You can create your own GUI using GUI Composer add-on in CCStudio.

    have you looked at InstaSPIN-FOC?
    While FOC is technically more complicated than BLDC, InstaSPIN-FOC is actually much faster to get quality control over a very wide speed and torque range than InstaSPIN-BLDC.