Simplifications on field oriented control for low power voltage source induction motor drives

The paper presents the results of research on the simplification of field orientation control methods for induction motor drives in stator, rotor, and air gap flux coordinates and using a PWM, voltage source inverter. The application of the input-output linearization method yields sophisticated control laws. Some simplification steps are taken next in order to achieve control procedures of decreasing complexity, specially devised for economy in low power drives. Steady state and dynamic performance are analytically studied, as well as robustness to the variation of parameters. The comparison with other related methods shows a progress in this field. Experimental results of speed and position control are reported from a prototype with a single eight-bit microcontroller and confirm the expected performance