Control of a quasi resonant DC-link soft switching inverter

Author

Kedarisetti, Jayalakshmi ; Mutschler, Peter

Author_Institution

Dept. of Power Electron. & Control of Drives, Darmstadt Univ. of Technol., Darmstadt, Germany

fYear

2011

fDate

27-30 June 2011

Firstpage

171

Lastpage

176

Abstract

The control of a quasi-resonant dc link inverter (QRDCLI) comprises the control of a resonant circuit and the control of an inverter bridge. In this paper, the control of a resonant circuit based on the acquisition of voltage and current signals is discussed. Then, for the control of an inverter, a modified space vector PWM (SVPWM) is discussed. A conventional space vector modulation requires 6 resonant cycles per a switching period, resulting in poor DC-link voltage utilization. A modified SVPWM technique requires only 2 resonant cycles per a switching period. The performance of the modified SVPWM is verified by the experimental results. The total control of a QRDCL inverter is implemented in a FPGA.

Keywords

PWM invertors; field programmable gate arrays; switching convertors; FPGA; QRDCLI; SVPWM technique; current signals; inverter bridge; modified space vector PWM; quasi resonant DC-link soft switching inverter; resonant circuit; voltage signals; Field programmable gate arrays; Inductors; Inverters; Pulse width modulation; RLC circuits; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2011 IEEE International Symposium on

Conference_Location

Gdansk

ISSN

Pending

Print_ISBN

978-1-4244-9310-4

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/ISIE.2011.5984152

Filename

5984152