A Review on Placement of DSTATCOM in Distribution Systems for the Compensation of Reactive Power

Flexible AC transmission (FACT) system is an AC transmission system that incorporates a power electronic controller and other static controllers to improve the controllability as well as power transfer capability. It improves the performance of electrical networks by managing active and reactive powers. These FACT devices are SVC, STATCOM, IPC, DVR, UPFC, TCSC, TCPST and distribution static compensator (DSTATCOM). DSTATCOM is a custom power device which is installed in parallel with distribution system. Regarding problems of power quality, these devices are used, but for getting better response, DSTATCOM is used. There are various modulation techniques, and control techniques are also available for implementing these problems. These techniques are PWM and SPWM (modulation techniques), and other techniques are phase shift control, d-q theory, synchronous reference frame model and so on.