This paper proposes a fully digital control
scheme for high-performance induction servo drives. A
software current vector control in synchronous rotating
reference firame with feedforward back emf compensation has
been devel'oped for the current-regulated PWM inverters. A
dual-DSP based digital controller using the TMS 320C14 and
TMS 320C50 from the Texas Instruments has been employed
to realiie the proposed software servo control scheme.
Experimental results show the proposed control scheme can
achieve robust servo requirements and at the same time
maintain a fast current response with small current ripples.