Sliding mode controller for four leg shunt active power filter to eliminating zero sequence current, compensating harmonics and reactive power with fixed switching frequency
Résumé
In this paper, the four leg inverter controlled by the three dimensional
space vector modulation (3D SVM) is used as the shunt active power filter
(SAPF) for compensating the three phase four wire electrical network, by using
the four leg inverter with 3D SVM advantages to eliminated zero sequence
current, fixed switching frequency of inverter switches, and reduced switching
losses. This four leg inverter is employed as shunt active power filter to
minimizing harmonic currents, reducing magnitude of neutral wire current,
eliminating zero sequence current caused by nonlinear single phase loads and
compensating reactive power, and a nonlinear sliding mode control technique
(SMC) is proposed for harmonic currents and DC bus voltage control to improve
the performances of the three phase four wire four leg shunt active power filter
based on Synchronous Reference Frame (SRF) theory in the dq0 axes, and to
decoupling the four leg SAPF mathematical model.
Origine | Fichiers produits par l'(les) auteur(s) |
---|---|
Licence |