Flux Vector Control with Space Vector Modulation for PWM inverter fed induction motor drive

This paper presents a simple Direct Flux Vector Control with Space Vector Modulation (DFVC-SVM) scheme for induction motor drives. Developed algorithm has several advantages like: simplicity (coordinate transformations, current and flux controller are eliminated), wide speed operation range, good dynamics, low torque ripples, constant switching and low sampling frequency. The DFVC-SVM can be used in various applications like electric vehicles, where field weakening operation is required. Drive operation ranges including field weakening region are described. Selected experimental results measured on the 7.5kW induction motor drive which illustrates steady state and dynamic performances of the developed system are given.