I need guidance on the creation of circle_limit_table in RevPark_Circle_Limitation in ST FOC2.0

江苏大学

I need guidance on the creation of circle_limit_table in RevPark_Circle_Limitation in ST FOC2.0 [Copy link]

First of all, Ud and Uq coming out of the current loop may cause the voltage vector to over-modulate. To prevent this from happening, ST provides a calculation method with clear physical meaning, which is to pull the vector back in proportion, as shown in the following figure: So, in the specific implementation, ST's algorithm is as follows: Question: How is the circle_limit_table in the algorithm created? ? How is START_INDEX determined? ? [Note]: Below are two tables with modulation ratios of 0.89 and 0.91

wtliu

Didn’t see the picture;

江苏大学

First of all, Ud and Uq from the current loop may cause the voltage vector to be over-modulated. To prevent this from happening, ST has provided a calculation method with a clear physical meaning, which is to pull the vector back in proportion, as shown in the following figure: Then, in the specific implementation, the ST algorithm is as follows: Question: How is the circle_limit_table in the algorithm created? ? How is START_INDEX determined? ? [Note]: Below are two tables with modulation ratios of 0.89 and 0.91

江苏大学

wtliu posted on 2018-7-9 08:46 I didn’t see the picture;

https://en.eeworld.com/bbs/thread-650888-1-1.html Please move to this link, thank you!