• Diksha wasnik
• Prof.Radharaman Shaha

In recent years utility distribution system experiences various types of disturbances. The major problems are voltage sag and swell, there is need to compensate it .Today most of the distribution companies are using many electrical and electronics components based on semiconductor devices for improving power quality. There are various methods are used for compensation of sag and swell voltage. In this paper Dynamic voltage restorer is used for compensation which is most popular and widely used method. Here, DVR is used with self-supported system. In this proposed work DVR’s life time is improved by replacing battery with super capacitor. Super capacitor are most suitable short duration of energy requirement i.e. for compensation of sag and swell. The controlling of DVR can be done by SRF controller. The overall work is carried out in MATLAB Simulink

DVR, voltage sag, voltage swell, SRF controller

"A Dynamic Voltage Restorer with Voltage Sag and Voltage Swell Compensation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.196-202, May-2019, Available :http://www.jetir.org/papers/JETIRBV06042.pdf

"A Dynamic Voltage Restorer with Voltage Sag and Voltage Swell Compensation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp196-202, May-2019, Available at : http://www.jetir.org/papers/JETIRBV06042.pdf