Title :
Stability issues of current controllers based on repetitive-based control and second order generalized integrators for active power filters
Author :
Rodríguez, Ana ; Girón, Carlos ; Sáez, Vanessa ; Bueno, Emilio ; Meca, Francisco J. ; Rodríguez, Francisco J.
Author_Institution :
Dept. of Electron., Univ. of Alcala, Alcalá de Henares, Spain
Abstract :
Starting from previous works, this paper analyzes the robustness and stability of two current controller schemes for shunt active power filters, based on repetitive controllers and proportional+resonant controllers using second order generalized integrators connected in parallel. Both controllers are well suited due to their optimum tracking and harmonic rejection capability. The objectives of this paper are: to present a brief description of both controllers, study their behavior under drifts in the value of the plant parameters and in the frequency, and also analyze the suitability of these controllers to work in a current control scheme when a nonlinear load is demanding asymmetric currents. Finally, some comparative results will be shown.
Keywords :
active filters; electric current control; power harmonic filters; robust control; current control; filter harmonic rejection capability; repetitive-based control; robust control; robust stability; second order generalized integrators; shunt active power filters; Active filters; Delay; Frequency control; Harmonic analysis; Mathematical model; Power harmonic filters; Time frequency analysis;
Conference_Titel :
Industrial Electronics (ISIE), 2010 IEEE International Symposium on
Conference_Location :
Bari
Print_ISBN :
978-1-4244-6390-9
DOI :
10.1109/ISIE.2010.5636298