Plataforma de laboratorio para prácticas de filtrado activo de potencia

— Non-linear electrical loads connected to power systems introduce non-active power components. The current harmonics and reactive power deteriorate the power quality and reduce the electrical system efficiency. These non-desirable effects can be avoided by using shunt active power filtering. This is a relevant topic in electrical and power electronics systems and, as a consequence, it must be included in undergraduate engineering courses. The aim of this paper is to present a laboratory setup of a three-phase three-wire shunt active power filter (SAPF) which allows undergraduate and postgraduate engineering students to evaluate experimentally the performance of different control algorithms in SAPFs. As an example a complete didactic application is described using the developed laboratory setup. La estructura general de un FAPP trifásico a tres hilos se muestra en la Figura 1. El controlador digital tiene como funciones [5]: A) evaluar la corriente de referencia i c * que debe ser inyectada en el punto de conexión de la carga no lineal para compensar las componentes no activas y mantener la capacidad de compensación del FAPP, B) controlar que la corriente inyectada i c se corresponde con la de referencia y C)