Other Parts Discussed in Thread: MOTORWARE, CONTROLSUITE
Hi responsible.
We are currently developing an AC Induction motor driver for high voltage high current system that will be gotten in use mill-rolling and cement sector. Perhaps our annual manufacturing would be around 200 pieces for 400-800kW range 3 phase ACIM (690VAC line to line)
I use F28069 piccolo MCU which is run over TMDSHVMTRPFCKIT. I deliberately dont want to use F28069M for instaSPIN motorware. Because we need "motor control math know-how". After this brief;
While i have used the library from "controlSUITE\libs\app_libs\motor_control\math_blocks\v4.2 ", I noticed one problem. I configured all parameters well though my motor isnt controlled under 0.25pu (1.0pu = 100Hz = 3000rpm). I did read your DMC MATH_v13.1 Doc, you (Ti) announced, (DMC MATH_v13.1 page 26) for low speed, we need the current model for flux linkage. But you didnt mention how to model with current model approximation. Your Estimator works based on voltage model. As far as i have read some articles over the net, according to the articles, best method to use combination of current and voltage model.
My intention is from you, Could you share the current model flux linkage maths and its formulas also if possible its C Codes and tell me how to combine these 2 main blocks in one block.