DC-bus voltage control for dual PWM based on comprehensive reactive power current target

Author

Xiao Yunqi ; Jia Pengxiao

Author_Institution

Sch. of Control Sci. & Eng., North China Electr. Power Univ., Beijing, China

fYear

2011

fDate

22-24 July 2011

Firstpage

2884

Lastpage

2888

Abstract

DC-bus voltage control strategy of AC-DC-AC dual PWM converter system is researched. Based on original direct current control strategy for net-side rectifier in d-q synchronous reference frame, a novel reactive power current i_q control strategy is proposed, which takes both the unity power factor and the DC-bus voltage stability together, as i_q comprehensive regulating target, using a fuzzy controller. Simulation results indicate that the reactive power current i_q dose quick up the response speed of active power current i_d, and the DC-bus control performance is improved.

Keywords

AC-DC power convertors; PWM power convertors; electric current control; fuzzy control; reactive power control; rectifiers; voltage control; AC-DC-AC dual PWM converter; DC-bus voltage control; DC-bus voltage stability; d-q synchronous reference frame; direct current control; fuzzy controller; net-side rectifier; reactive power current control; reactive power current target; unity power factor; Current control; Inverters; Pulse width modulation converters; Reactive power; Rectifiers; Transient analysis; Voltage control; Dual PWM converter; Fuzzy control; Rectifier; Variable-frequency driving; direct current control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2011 30th Chinese

Conference_Location

Yantai

ISSN

1934-1768

Print_ISBN

978-1-4577-0677-6

Electronic_ISBN

1934-1768

Type

conf

Filename

6000741