This application report presents a solution to control an AC induction motor using the Control Law
Accelerator (CLA) which is a small foot print coprocessor present on some of the microcontrollers from the C2000™ family of MCU.
TMS320F2803x devices are part of the family of C2000
microcontrollers which enable cost-effective design of intelligent controllers for three phase motors by
reducing the system components and increase efficiency. With these devices it is possible to realize far
more precise digital vector control algorithms like the Field Orientated Control (FOC). This algorithm’s
implementation is discussed in this document. The FOC algorithm maintains efficiency in a wide range of
speeds and takes into consideration torque changes with transient phases by processing a dynamic model
of the motor. Among the solutions proposed are ways to eliminate the phase current sensors and use an
observer for speed sensorless control.