MITIGATION OF POWER QUALITY ISSUES IN DISTRIBUTION SYSTEM USING D-STATCOM

Electric problems always occur regarding of time and place. This may cause an impact to the electric supply and thus may affect the manufacturing industry and impede the economic development in a country. The increased concern for power quality has resulted in measuring power quality variations, studying the characterizing of power disturbances and providing solutions to power quality problems. The aim of this work is to improve the power quality for Distribution System with D-STATCOM .Power quality is the combination of voltage quality and current quality. Power quality is the set of limits of electrical properties that allows electrical systems to function in their intended manner without significant loss of performance or life. The electrical power quality is more concerned issue. The main problems are stationery and transient distortions in the line voltage such as harmonics, flicker, swells, sags and voltage asymmetries. Recently, the Power electronics controllers are gaining concern to provide the quality of power for both power suppliers and consumers. Various power filtering technology i.e. passive filters, active power filters, hybrid filters have applied from time to time for giving the solution of power quality problems to users, But could not fully satisfied them.