Sliding Mode Speed Control of a Permanent Magnet Synchronous Motor using Twelve Sectors Modified DTC

This paper aims to design and realize twelve sectors of modified DTC drive, especially for Permanent Magnet Synchronous Motor (PMSM). Conventional drives follow six sectors and experience fluctuations in output responses. Twelve-sector DTC drive topology reduces the torque ripple, speed variation, current variation, etc. The Sliding Mode Control analogy controls the feedback error, which follows variable structure control. A comparison between SMC and PI-controlled twelve sectors modified DTC is studied. Along with this, six sectors and twelve sectors modified DTC are compared in the vicinity of the PI and SMC approaches.