Abstract: Custom Power (CP) devices that mitigate these power quality problems have gained more attention in the recent decades. This work deals with conceptual study of DSTATCOM during voltage sag and swell on the power network. Power quality has become an important factor in power systems, for consumer and household appliances with production of various electric and electronic equipment and computer systems. The main causes of a poor power quality are harmonic currents, poor power factor, supply voltage variations etc. A complete simulation model of the proposed system will be developed in Matlab / Simulink Environment. The system will be simulated with different control strategies under different operating conditions for comparison.

Keywords: PMSM, Load Control, PI controller, Fuzzy Controller etc.