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Original question:

TMS320F2800137: The speed was also fluctuating

TMS320F2800137: d-axis

zhou qicheng
Intellectual 790 points

Part Number: TMS320F2800137

Tool/software:

Hello, I have assigned the d-axis value to 0 directly, obj->Vdq_out_V.value[0] = 0.0f; But strangely, I still need to adjust the pi of the d-axis. Why is that? I tried to mask the call to the d-axis pi function and found that the waveform has deteriorated. Is there a significant difference between fast and 027

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    TI__Genius 11076 points

    Hello,

    Apologies one more time for the long delay in response. I've responded to the original thread here and will close this one.

    Additionally, please note that the F28027 motor control code typically uses the FAST estimator.

    Jason Osborn