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为什么 我用反电势 估算角度 超前 fast 估算角度 90度?



// run the estimator
EST_run(obj->estHandle,CTRL_getIab_in_addr(handle),CTRL_getVab_in_addr(handle),
pAdcData->dcBus,TRAJ_getIntValue(obj->trajHandle_spd));

// generate the motor electrical angle

angle_pu = EST_getAngle_pu(obj->estHandle);


angle_puBFM = _IQatan2PU(obj->Vab_in.value[1],obj->Vab_in.value[0]);