Modeling, simulation and control of D-STATCOM using ATP/EMTP

This paper presents a study on the modeling of D-STATCOM used for reactive power compensation in a power distribution network. The power circuit topology and network simulation are modeled by using ATP/EMTP software. The model description of Phase Locked Loop (PLL), the measurement system, voltage regulation loop and sinusoidal PWM signal generators are derived and presented. The results show that fast dynamic responses and low harmonic content can be expected from the proposed control strategy.