Study of a novel STATCOM based on modular multilevel inverter

Author

Zhu, Jingsong ; Li, Lei ; Pan, Min

Author_Institution

Inst. of Autom., NJUST, Nanjing, China

fYear

2012

fDate

25-28 Oct. 2012

Firstpage

1428

Lastpage

1432

Abstract

A new shunt STATCOM based on modular multilevel converter (MMC) is researched in this paper. The circuit topology, sub-module mathematical model and working principle are analyzed in detail. A dynamic reactive current detection method based on the trigonometric function is applied to the compensation of MMC inverter. Attention is paid on the control to keep voltage stable of the capacitor with combining the regulating error signals to the CPS-SPWM waves, which has overcome the shortcoming that dc-link capacitor voltage is influenced by load interference when tracking the reactive current. The feasibility and effectiveness of the MMC-based STATCOM is validated by test results.

Keywords

HVDC power convertors; capacitors; invertors; mathematical analysis; network topology; static VAr compensators; CPS-SPWM waves; MMC inverter; STATCOM; circuit topology; dc-link capacitor voltage; dynamic reactive current detection method; error signals; load interference; modular multilevel converter; modular multilevel inverter; reactive current; submodule mathematical model; trigonometric function; Automatic voltage control; Integrated circuits; Inverters;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

Conference_Location

Montreal, QC

ISSN

1553-572X

Print_ISBN

978-1-4673-2419-9

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2012.6388563

Filename

6388563