Analysis of voltage sag compensation in distribution systems using a multilevel DSTATCOM in ATP/EMTP

Voltage sags are the most common power quality disturbances in electrical facilities. It may cause malfunction in sensitive equipment and process interruption. The distribution static compensator (DSTATCOM) is a device that can compensate voltage sags by injecting reactive power into distribution system. This paper shows the influence on voltage sags characteristics by the presence of twelve-pulse DSTATCOM in the modified IEEE-13 distribution system. The analysis is performed by means of a random generation of disturbances using a MATLAB routine to identify the critical buses of the test system. Further, the DSTATCOM model taking advantage of the available elements from ATP/EMTP software is described. Simulations show that when DSTATCOM is placed directly to affected bus it is possible to obtain a complete mitigation of the voltage sag. Finally, the relation between the reactive power injected by DSTATCOM, the type of voltage sag and the location of affected bus is considered.

• Autores: Rojas-Cubides, Herbert Enrique; Cruz-Bernal, Audrey Soley; Rojas-Cubides, Harvey David
• Tipo de recurso: Article of journal
• Fecha de publicación: 2015
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/60679
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/60679; http://bdigital.unal.edu.co/59011/
• Palabra clave: 62 Ingeniería y operaciones afines / Engineering; voltage sags; DSTATCOM; voltage compensation; ATP/EMTP; power quality
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional