Dynamic behaviour of a series - connected multilevel converter with interleaved switching

Author

Fahrni, C. ; Rufer, A.

Author_Institution

Lab. d´´Electron. Ind., STI-LEI-EPFL, Lausanne

fYear

2008

fDate

1-3 Sept. 2008

Firstpage

256

Lastpage

259

Abstract

This paper presents an analysis and design method for the current control of a series connected multilevel converter with interleaved switching. Based on a conventional design method for the parameters of a PI controller, the variable response of a current control circuit with one channel is presented, in dependency of the intervention time of the step on the set value. Then, a model for the equivalent transfer function of the control circuits of the interleaved solution is presented. A new approach for the design of the parameters of the current controller is proposed. The resultant step response in closed loop operation of the system will show the no more fluctuating response regarding overshoot.

Keywords

PI control; control system synthesis; electric current control; switching convertors; PI controller parameter design method; closed loop operation; current control; current controller; equivalent transfer function; interleaved switching; series-connected multilevel converter; Circuits; Control systems; Current control; Delay; Design methodology; Open loop systems; Pulse width modulation; Pulse width modulation converters; Switching converters; Transfer functions; Converter control; interleaved converter; modeling; multilevel converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 13th

Conference_Location

Poznan

Print_ISBN

978-1-4244-1741-4

Electronic_ISBN

978-1-4244-1742-1

Type

conf

DOI

10.1109/EPEPEMC.2008.4635275

Filename

4635275