UM0324 Datasheet, PDF (1/105 Pages) STMicroelectronics – This user manual describes

UM0324
User manual
STR750
AC induction motor IFOC software library V1.0
Introduction
This user manual describes the AC induction motor IFOC software library, an Indirect Field
Oriented Control (IFOC) Firmware Library for 3-phase induction motors developed for the
STR750 microcontroller.
This 32 bit, ARM cored ST microcontroller, comes with a set of peripherals which make it
suitable for performing both permanent magnet and AC induction motors FOC. In particular,
this manual describes the STR750 software library developed to control AC induction
motors equipped with an encoder or tacho-generator, in both open and closed loop. The
control of a permanent magnet (PM) motor in sinewave mode with encoder is described in
the UM0312 User Manual.
The AC IM IFOC software library is made of several C modules, compatible with the IAR
EWARM toolchain. It will allow you to quickly evaluate both the MCU and the available tools.
In addition, when used together with the STR750 motor control starter kit (STR750-MCKIT)
and an AC induction motor, you will be able to get a motor running in a very short time. It
also eliminates the need for time-consuming development of IFOC and speed regulation
algorithms by providing ready-to-use functions that let you concentrate on the application
layer.
A prerequisite for using this library is basic knowledge of C programming, AC motor drives
and power inverter hardware. In-depth know-how of STR750 functions is only required for
customizing existing modules and for adding new ones for a complete application
development.
The figure below shows the architecture of the firmware. It uses the STR750 Standard
Library extensively but it also acts directly on hardware peripherals when optimizations in
terms of execution speed or code size are required.
February 2007
Rev 1
1/105
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