• Augustine Kujur
• Aman Banjare
• Megha Dewangan
• Ankush Paikra
• Jagannath Patra

Nowadays the problem of power quality has grown to be a significant concern in order to preserve the quality of supply. The modern generation relies heavily on electrical energy to enhance their quality of life. Electricity is necessary for the operation of modern devices like computers and electric motors. Power quality is a crucial problem in today's power system that can affect both utilities and consumers. High-quality supply is necessary for the equipment to function better. Voltage sag/swell is one of the most common power quality issues in transmission networks. To lessen such issues, there are a lot of contemporary custom devices. The Dynamic Voltage Restorer (DVR) is the most economical and efficient of them .The Distribution Flexible AC Transmission System (D-FACTS) can be equipped with a DVR to address issues related to irregular voltage, current, or frequency in the distribution grid. A summary of DVR and its control scheme, which is used to mitigate power quality issues, is presented and properly analysed in this paper. Artificial neural network has been used in the controller which gives signal to the system. Artificial neural network based DVR is used to ease the sag problem.

Dynamic Voltage Restorer (DVR) , Artificial Neural Network , PI Controller , Voltage Sag

"VOLTAGE SAG MITIGATION USING LEVENBERG MARQUARDT ARTIFICIAL NEURAL NETWORK BASED DYNAMIC VOLTAGE RESTORER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 3, page no.d166-d181, March-2024, Available :http://www.jetir.org/papers/JETIR2403320.pdf

"VOLTAGE SAG MITIGATION USING LEVENBERG MARQUARDT ARTIFICIAL NEURAL NETWORK BASED DYNAMIC VOLTAGE RESTORER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 3, page no. ppd166-d181, March-2024, Available at : http://www.jetir.org/papers/JETIR2403320.pdf