Average Power Balancing Control of a STATCOM Based on the Cascaded H-Bridge PWM Converter With Star Configuration

Author

Chia-Tse Lee ; Bo-siang Wang ; Sheng-wan Chen ; Shih-feng Chou ; Jun-lin Huang ; Po-Tai Cheng ; Akagi, Hirofumi ; Barbosa, Paulo

Author_Institution

Coll. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

Volume

50

Issue

6

fYear

2014

fDate

Nov.-Dec. 2014

Firstpage

3893

Lastpage

3901

Abstract

This paper presents the average power balancing (APB) control method for the modular multilevel cascaded converter based on single-star bridge cells in the static synchronous compensator applications. The proposed control method accomplishes both the reactive power compensation and the dc bus voltage balancing control even under grid voltage sags. The low-voltage ride-through capability of the proposed method will become more and more important as more distributed generation resources are integrated into the grid. Laboratory test results are provided to validate the proposed APB control method.

Keywords

PWM power convertors; distributed power generation; power grids; reactive power control; static VAr compensators; voltage control; APB control method; STATCOM; average power balancing control method; cascaded H-bridge PWM converter; dc bus voltage balancing control; distributed generation resources; grid voltage sags; laboratory test; low-voltage ride-through capability; modular multilevel cascaded converter; reactive power compensation; single-star bridge cells; star configuration; static synchronous compensator applications; Automatic voltage control; Bridge circuits; Equations; Mathematical model; Pulse width modulation; Reactive power; Low-voltage ride-through; modular multilevel cascaded converter (MMCC); static synchronous compensator (STATCOM);

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2014.2312618

Filename

6776558