What is the need of dstatcom?
DSTATCOM is one of the equipments for voltage sag mitigation in
power systems. In this paper a new control method for balanced and
unbalanced voltage sag mitigation using DSTATCOM is proposed. The
control system has two loops in order to regulate
compensator current and load voltage. Delayed signal
cancellation has been used for sequence separation. The compensator
should protect sensitive loads against different types of voltage
sag. Performance of the proposed method is investigated under
different types of voltage sags for linear and nonlinear loads.
Simulation
results show appropriate operation of the proposed control
system.