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TMS320F28027: boostxldrv8305 instaspin_foc issues

Yale Li 李耀先
Expert 4660 points

Part Number: TMS320F28027
Other Parts Discussed in Thread: MOTORWARE

Hi Team,

Here are two issues from the customer may need your help:

E:\ti\motorware\motorware_1_01_00_18\sw\solutions\instaspin_foc\boards\boostxldrv8305_revA\f28x\f2802xF\projects\ccs \proj_lab11a

1. Where is the alignment current be set at the beginning of the motor?

Is it this variable? Or other variable in user.h?

2. Where to set the speed of switching from open loop to closed loop?

--

Thanks & Regards

Yale

  • +1
    TI__Guru** 116850 points
    Yale Li 李耀先 said:

    1. Where is the alignment current be set at the beginning of the motor?

    InstaSPIN-FOC doesn't have the alignment process.

    Yale Li 李耀先 said:
    2. Where to set the speed of switching from open loop to closed loop?

    The parameters below in user.h

    //! \brief Defines the low speed limit for the flux integrator, pu
    //! \brief This is the speed range (CW/CCW) at which the ForceAngle object is active, but only if Enabled
    //! \brief Outside of this speed - or if Disabled - the ForcAngle will NEVER be active and the angle is provided by FAST only
    #define USER_ZEROSPEEDLIMIT (0.5 / USER_IQ_FULL_SCALE_FREQ_Hz) // 0.002 pu, 1-5 Hz typical; Hz = USER_ZEROSPEEDLIMIT * USER_IQ_FULL_SCALE_FREQ_Hz

    //! \brief Defines the force angle frequency, Hz
    //! \brief Frequency of stator vector rotation used by the ForceAngle object
    //! \brief Can be positive or negative
    #define USER_FORCE_ANGLE_FREQ_Hz (2.0 * USER_ZEROSPEEDLIMIT * USER_IQ_FULL_SCALE_FREQ_Hz) // 1.0 Typical force angle start-up speed