UM0324 Datasheet, PDF (55/105 Pages) STMicroelectronics – This user manual describes

UM0324
Library functions
the sampled current. Refer to the STR750 Reference Manual to learn more about A/D
conversion triggering and the repetition counter.
Finally, at the end of the injected chain conversion for current reading, the general purpose
A/D conversions are performed while the CPU executes the IFOC algorithm.
Figure 35. Stator currents sampling and GP conversions in ICS configuration
(REP_RATE=1)
4.4
4.4.1
Induction motor IFOC vector control: MC_IFOC_Drive.c
module
Overview
The MC_IFOC_Drive.c module, designed for AC induction machines, provides, at the
core, decoupled torque and flux regulation, relying on indirect field oriented control
algorithm.
In addition, it makes available other important features:
● speed regulation by PID feedback control,
● flux weakening for extended speed range.
It works, requiring no adjustment, with all of the selectable current or speed sensing
configurations (in accordance with the settings in the 75x_MCconf.h file):
● isolated current sensing (ICS),
● three shunt resistors current sensing,
● encoder position and speed sensing,
● tachometer speed sensing.
It handles several functions of other modules, and has no direct access on the
microcontroller peripheral registers.
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