Power quality is one of major concerns in the present area. It has become important, especially, with the introduction of sophisticated devices, whose performance is very sensitive to the quality of power supply that results in a failure of end use equipment’s. One of the major problems dealt here is the voltage sag. To solve this problem, custom power devices are used. One of those devices is ...

The recent trend of distributed generation leads to several issues regarding power quality and energy efficiency. To meet the increased demand of electricity services and to increase service quality the current power grid structure should be controlled in such a way that distributed generation could be easily connected to it. The various services are becoming challenging concern to elegantly in...

This paper deals with the modeling and simulation of Distribution Static Compensator (D-STATCOM) for voltage sag mitigation. The D-STATCOM simulation model consists of 12-pulse inverter, which is connected in shunt with the system. A generalized sinusoidal pulse width modulation (SPWM) technique was developed in the proposed controller for fast control action of the D-STATCOM. Simulations of th...

In this paper a new topology for Dynamic Voltage Restorer (DVR) with high frequency link is proposed. This topology is able to compensate different types of voltage disturbances such as voltage sag, voltage swell and voltage harmonics. According to the obtained equations, this topology operates as a controllable current source to charge the series capacitor. Due to using High Frequency Transfor...

An interline dynamic voltage restorer (IDVR) is a novel c o m p e n s a t i o n piece of equipment for sag mitigation It is made of several dynamic voltage restorers (DVRs) with a common dc link, here each DVR is connected in series with a distribution feeder. In the sag period, active power is transferred from a feeder to other one and voltage sags with long durations can be mitigated. IDVR co...