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

fYear

2008

fDate

June 30 2008-July 2 2008

Firstpage

890

Lastpage

895

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISIE.2008.4676892

Filename

4676892