SPRUHJ1I January 2013 – October 2021 TMS320F2802-Q1 , TMS320F28026-Q1 , TMS320F28026F , TMS320F28027-Q1 , TMS320F28027F , TMS320F28027F-Q1 , TMS320F28052-Q1 , TMS320F28052F , TMS320F28052F-Q1 , TMS320F28052M , TMS320F28052M-Q1 , TMS320F28054-Q1 , TMS320F28054F , TMS320F28054F-Q1 , TMS320F28054M , TMS320F28054M-Q1 , TMS320F2806-Q1 , TMS320F28062-Q1 , TMS320F28062F , TMS320F28062F-Q1 , TMS320F28068F , TMS320F28068M , TMS320F28069-Q1 , TMS320F28069F , TMS320F28069F-Q1 , TMS320F28069M , TMS320F28069M-Q1
Once the Id Rated has been identified, the next state is the Rated Flux state (Figure 7-34).
During this state, the previously identified Id Rated current is used in a closed loop system inside the estimator to calculate the flux linkage between rotor and stator. Only 50% of IdRated is used. At the end of this state, the computed rated flux using the Id Rated current is saved as the rated flux of the machine.
For the Rated Flux state, the current ramp-down and total measurement time are the same for both motors. For more information, see Section 7.6.6.1 and Section 7.6.6.2.
Figure 7-35 shows how the loop is closed, the current is much more stable than the IdRated state, and user might double check the estimated flux in the watch window to confirm that the flux estimation is what the original setting in user.h was.