Investigations on power quality improvement for distribution networks using active compensator with new converter transformer

Abstract

The demand for electricity is increasing day by day and this attracts more private industries to join hands with public Power System Utility Industry. Augmenting wind and solar farms pumping power to the grid and helps the Power System industry to a great extent in meeting with the increased demand. In recent years, residential customers are moving towards harnessing electricity from solar. Power Electronic Converters are an integral part of the industrial loads as well as the renewable energy industry and this contribute to lot of harmonics thereby reducing the quality of power. Other major issues adversely affecting the power quality are increased reactive power, increased active power loss, unusual equipment behaviour and interference with adjacent communication lines. Lot of researchers are working on the area of power quality improvement and lot of suggestions are available in literature. One of the most promising methods, is the provision of a compensator in the transmission and distribution network. Compensating devices such as Passive Filter, Active Filter, and Unified Power Quality Conditioner (UPQC) are some of the most attractive options to address several significant power quality issues in the electrical network side. newlineCompensators available in literature use Traditional Convertor Transformer (TCT) and New Convertor Transformer (NCT) for reducing the harmonics and to improve the power quality. In the traditional converter transformer, the compensator is located at the primary side of the transformer. During commutation or switching operation, the generated harmonics flow freely within the transformer winding, leading to significant issues like additional losses, increase in temperature, vibration and noise newline