Author : Muhammad Sufiyan, Bilal Ahmad and Ali Kumail

Electrical power plays a key role in the modern world. With growing technological inventions and our reliability on the electrical energy, it is now considered as the inevitable need. From complex industrial machinery to data centers around the globe, the economies are thriving on electrical power. Although there has been a lot of development on issues related to delivering the power to the end consumers, the critical question i.e. the quality of power still has many areas of concern which are needed to be addressed. With the introduction of a myriad of high-end tech equipment, sophisticated computers, and electronic devices, the power quality can easily jeopardize the functionality and reliability and can put this equipment at risk which can cause a considerable loss in terms of both financial and economic aspects. This paper discusses the power quality improvement by introducing the Dynamic Voltage Restorers on the distribution end of the power system. DVRs can produce active and reactive power. With properly controlled mechanisms, this generated power can be injected into the system to overcome the disturbances and ensure the quality of the power supply. The DVRs addresses the two major areas of power quality. Voltage sag and the voltage swell. The selection of DVRs is primarily based on easy-to-implement and cost-effective solutions as compared to the other industrial solutions. The paper will analyze the effect of the DVRs on the power quality by using a prototype DVR model based on a 1kVA load connected to a simulated distribution feeder. DR program for energy management.

Keywords: Power Quality, Voltage Sag, Dynamic Voltage Restorers.