Copyright: © the author(s), publisher and licensee Technoscience Academy. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited International Journal of Scientific Research in Science, Engineering and Technology Print ISSN: 2395-1990 | Online ISSN : 2394-4099 (www.ijsrset.com) doi : https://doi.org/10.32628/IJSRSET 464 Power Quality Improvement using Artificial Neural Network Controller based Dynamic Voltage Restorer Shubham Yadav, Manish Chandrakar Electrical Engineering, RSRRCET Bhilai, Chhattisgarh, India A R T I C L E I N F O A B S T R A C T Article History: Accepted: 01 June 2023 Published: 16 June 2023 The importance of power quality (PQ) concerns amplifies as the number of voltage-sensitive loads rises within distribution systems. Industrial distribution systems commonly face voltage disturbances, which primarily include voltage sags, voltage swells, and voltage unbalances. Voltage sags or swells can occur throughout the entire system or affect a substantial portion of it due to faults occurring at either the transmission or distribution level. Additionally, when the system experiences high demand, a notable voltage reduction, or drop, can take place. Voltage sag and swell can lead to the failure or shutdown of sensitive equipment found in industries like semiconductor or chemical plants. These voltage disturbances can also result in a significant current imbalance, potentially causing fuses to blow or breakers to trip. The consequences of these effects can be financially burdensome for customers, ranging from minor fluctuations in quality to costly production downtime and equipment damage. The DVR (Dynamic Voltage Restorer) is a power electronic converter-based mitigation device that is connected in series. It is widely recognized as an effective custom power device for mitigating the adverse effects of voltage disturbances originating from upstream sources on sensitive loads. While the primary purpose of the DVR is to mitigate voltage sags and swells, there are instances where additional functionalities, such as harmonic compensation and reactive power compensation, are incorporated into the device. When it comes to controlling the DVR, the most commonly employed option is the PI (Proportional-Integral) controller. It offers a straightforward structure and can deliver satisfactory performance across a broad operational range. However, the main challenge with this simple controller lies in selecting the appropriate PI gains. Fixed gains may not always provide the desired control performance when there are changes in system parameters and operating conditions. Therefore, an online tuning process is necessary to ensure that the controller can effectively handle all variations in the system. The paper introduces the Dynamic Voltage Restorer (DVR) and Publication Issue Volume 10, Issue 3 May-June-2023 Page Number 464-470