A 6.6-kV transformerless STATCOM based on a five-level diode-clamped PWM converter: system design and experimentation of a 200-V, 10-kVA laboratory model

Author

Akagi, Hirofumi ; Fujita, Hideaki ; Yonetani, Shinsuke ; Kondo, Yosuke

Author_Institution

Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan

Volume

1

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

557

Abstract

This paper discusses a potential of a transformerless STATCOM (static synchronous compensator) intended for installation on the 6.6-kV industrial and utility distribution systems. The STATCOM consists of a five-level diode-clamped PWM converter rated at 1 MVA, and a voltage-balancing circuit rated at 6 kVA. Moreover, this paper designs, constructs, and tests a 200-V 10-kVA STATCOM based on a five-level converter with a carrier frequency of 3 kHz and a voltage-balancing circuit with a switching frequency of 3 kHz. The STATCOM and its experimental waveforms verify the viability and effectiveness of the 6.6-kV transformerless STATCOM.

Keywords

PWM power convertors; distribution networks; static VAr compensators; switching convertors; 200 V; 6.6 kV; five-level diode-clamped PWM converter; industrial system; laboratory model; pulse width modulation; switching frequency; transformerless STATCOM; utility distribution systems; voltage-balancing circuit; Automatic voltage control; Circuit testing; Diodes; Electrical equipment industry; Frequency conversion; Laboratories; Pulse width modulation converters; Switching converters; Switching frequency; Voltage transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518362

Filename

1518362