The research on the active power filter based on the cascaded H-bridge converter

Author

Chen, Yonggang ; Chen, Junling ; Wang, Ping ; Li, Yaohua ; Tan, Longcheng ; Li, Zixin ; Xu, Wei

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

1-3 Sept. 2008

Firstpage

2000

Lastpage

2004

Abstract

The model and the normal control method of the cascaded H-bridge active power filter is described firstly in this paper. However, problems exist in the normal control. One of the main problems is the unbalance of DC capacitor voltages of the H-bridge units. In this paper, an improved method for DC capacitor voltages control of the cascaded H-bridge active power filter is presented. With slightly shifting the modulation waves, it makes the DC capacitor voltages balancing in the accepted tolerance without any additional units. The method is validated by simulation and experiment.

Keywords

active filters; bridge circuits; cascade networks; power convertors; power harmonic filters; voltage control; DC capacitor voltage balance control; active power filter; cascaded H-bridge converter; harmonic mitigation; modulation waves; Active filters; Capacitors; Costs; Inverters; Medium voltage; Power harmonic filters; Power system harmonics; Switches; Total harmonic distortion; Voltage control; Active filter; cascaded H-bridge converter; dc voltage balance control;

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.2008.4635559

Filename

4635559