Simulación de un filtro activo de potencia tipo shunt: un caso de estudio

Simulation of a shunt-type active power filter: a case study

Abstract

The article analyzes the importance of power quality in modern electrical systems, especially due to the impact of nonlinear loads that generate harmonics and deteriorate the power factor. Active power filters (APF) are presented as an effective solution to mitigate these problems, focusing on shunt-type APFs. The operating principles of shunt-type APFs are described, including harmonic detection, compensation current generation, and injection into the system. Two control methods are examined: α-β and d-q transformations, comparing their advantages, disadvantages, and impact on filter performance. Through a case study simulated in Matlab/Simulink, the effectiveness of a shunt-type APF in compensating for harmonics and improving the power factor in an industrial system is demonstrated.