A direct power feedback method of a dual PWM three-level voltage source converter system

Author

Wei, Lixiang ; Li, Fahai ; Li, Chongjian

Author_Institution

Tsinghua Univ., Beijing, China

Volume

2

fYear

1999

fDate

1999

Firstpage

1089

Abstract

In this paper, an equivalent circuit of a three-level converter is proposed. By applying this equivalent circuit into a dual-PWM three-level converter system, a new direct power feedback method is obtained. Compared to the conventional control method, the direct power feedback scheme has the following merits: fast dynamic response from the rectifier to the inverter, DC voltage is more stable under dynamic state. Simulation results verified the feasibility and usefulness of this new control method

Keywords

PWM power convertors; dynamic response; equivalent circuits; feedback; invertors; power control; rectifying circuits; AC/DC/AC converter system; DC voltage stability; direct power feedback method; dual PWM three-level voltage source converter system; dual-PWM three-level converter system; dynamic state; equivalent circuit; fast dynamic response; rectifier; Circuits; Equations; Feedback; Frequency; Matrix converters; Power system modeling; Pulse width modulation; Pulse width modulation converters; Steady-state; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE

Conference_Location

Charleston, SC

ISSN

0275-9306

Print_ISBN

0-7803-5421-4

Type

conf

DOI

10.1109/PESC.1999.785647

Filename

785647