Reactive Power Control Using STATCOM to Support AC Voltage under Unbalanced Sag

This work deals with reactive power control using STATCOM to support AC voltage using Equal PWM and sine PWM. Voltage drop occurs in the system due to addition of load into the system which causes real and reactive power change in the system. To overcome this effects, PWM based STATCOM is used in the system, to provide AC voltage support as well as real and reactive power control. The simulation of two bus system will be done with and without PWM based STATCOM.