The present study suggests that series voltage injection is more effective than parallel current to improve quality on the load side. line can be accurately symmetrized at connection point by creating and controlling a component in each phase. This reliable injection. A dynamic restorer (DVR) distribution static synchronous compensator (DSTATCOM) were utilized provide required power. DVR an mod...

<p><span lang="EN-US">The power quality issues are raised due to sag/swell, which affects the overall performance of grid-connected system. This study introduces hybrid control mechanism based on a dynamic voltage restorer (DVR) mitigate sag and swell in solar PV-based IEEE 33 bus The controller improves boosts efficiency DVR proposed work is also used address distribution system's ...

Dynamic Voltage Restorer can provide the most cost effective solution to mitigate voltage sags and swells by establishing the proper voltage quality level that is required by customer. This device is connected in series with the distribution feeder at medium voltage. The PI controller is very common in the control of DVRs. However, one disadvantage of this conventional controller is the fact th...

This paper presents an improvement to the fault ride-through (FRT) capabilities for a wind turbine that employs switched reluctance generator (SRG) using dynamic voltage restorer (DVR). The may be disconnected from grid by sag, swell, and faulty line in grid. To improve stator of SRG during failures, DVR is applied inject at point common coupling (PCC) into voltage. A control strategy based on ...

The paper introduces the modified UPQC topology with reduced switching losses. UPQC is a versatile custom power device which consists of two inverters connected back to back and deals with both load current and supply voltage imperfections. It can simultaneously perform as shunt and series active power filters. The series part of the UPQC acts as Dynamic Voltage Restorer (DVR). It is used to ma...

In this paper, an electromagnetic transient model of Fixed Capacitor/ Thyristor Controlled Reactor (FC-TCR) is developed and applied to the study of transients due to load variations. The work is then extended to custom power equipment, namely Distribution Static Compensator (DSTATCOM) and Dynamic Voltage Restorer (DVR) aimed at enhancing the reliability and quality of power flows in low voltag...

One of the major concerns in electricity industry today is power quality. It becomes especially important with the introduction of advanced and complicated devices, whose performance is very sensitive to the quality of power supply. The electronic devices are very sensitive to disturbances and thus industrial loads become less tolerant to power quality problems such as voltage dips, voltage sag...

Industries driven by electric power require controlled and improved quality for the optimal exploitation of resources. However, certain crucial issues greatly influence quality, causing monetary losses to both utility customers. Numerous custom devices are available compensate issues; however, these alter parameters transmission distribution systems. Hence, a dynamic voltage restorer (DVR) is a...