Title :
Control strategy for three-phase current-source inverters based on Lyapunov’s direct method
Author :
Kömürcügil, Hasan ; Kükrer, Osman
Author_Institution :
Comput. Eng. Dept., Eastern Mediterranean Univ., Gazimagusa
fDate :
June 30 2008-July 2 2008
Abstract :
A new control strategy for three-phase current-source inverters is proposed based on a model of the converter in the rotating dq frame. The control equations are derived by making use of Lyapunovpsilas direct method. It is shown analytically that a globally stable operation is possible for the closed-loop system. The amplitude of the dc current is adjusted by employing a proportional-integral regulator in the output voltage control loop. The correct operation of the proposed strategy is verified through simulations. Results pertinent to a step load change indicate that reasonably fast responses of the output voltage without large distortion can be obtained.
Keywords :
Lyapunov methods; PI control; closed loop systems; invertors; machine control; voltage control; Lyapunov direct method; closed-loop system; control equations; output voltage control loop; proportional-integral regulator; three-phase current-source inverter control strategy; Boosting; Drives; Equations; Inductors; Low voltage; Pulse width modulation inverters; Switches; Topology; Uninterruptible power systems; Voltage control;
Conference_Titel :
Industrial Electronics, 2008. ISIE 2008. IEEE International Symposium on
Conference_Location :
Cambridge
Print_ISBN :
978-1-4244-1665-3
Electronic_ISBN :
978-1-4244-1666-0
DOI :
10.1109/ISIE.2008.4676892
