A novel strategy for a high-power utility interactive inverter with a series active filter

Makoto Saito, Toshihisa Shimizu

Research output: Contribution to journalArticle

Abstract

High-power utility interactive inverters used for large-capacity energy storage systems are composed of multiple connected inverters, in order to realize high efficiency and high performance of the harmonic elimination characteristic simultaneously. Some disadvantages of multiple connected inverters, such as harmonic current flowing from an inverter unit to the other one, and increase of the number of inverter units, cannot be overcome easily. This paper presents a novel strategy for a high-power utility interactive inverter, which is composed of a large power with low-switching-frequency PWM inverter (high-power PWM inverter), an LC passive filter, and a series active filter (series AF). Because harmonic components contained in the utility line current are absorbed by the series AF, the switching frequency of the PWM inverter can be selected to about 1 kHz. In addition because the power capacity and the output voltage of the series AF can be suppressed lower than 10% of the power capacity and the output voltage of PWM inverter, low-voltage and high-speed power devices can be applied to the series AF. Consequently, high power, high efficiency, and high harmonics elimination performance can be realized without increasing the number of inverter units.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume141
Issue number2
DOIs
Publication statusPublished - 2002 Nov 15
Externally publishedYes

Fingerprint

Active filters
Pulse width modulation
Switching frequency
Electric potential
Passive filters
Energy storage

Keywords

  • High-power PWM inverter
  • Series active filter
  • Utility interactive inverter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

@article{5eb6bd56555f4bc5aa0815f44e1482c8,
title = "A novel strategy for a high-power utility interactive inverter with a series active filter",
abstract = "High-power utility interactive inverters used for large-capacity energy storage systems are composed of multiple connected inverters, in order to realize high efficiency and high performance of the harmonic elimination characteristic simultaneously. Some disadvantages of multiple connected inverters, such as harmonic current flowing from an inverter unit to the other one, and increase of the number of inverter units, cannot be overcome easily. This paper presents a novel strategy for a high-power utility interactive inverter, which is composed of a large power with low-switching-frequency PWM inverter (high-power PWM inverter), an LC passive filter, and a series active filter (series AF). Because harmonic components contained in the utility line current are absorbed by the series AF, the switching frequency of the PWM inverter can be selected to about 1 kHz. In addition because the power capacity and the output voltage of the series AF can be suppressed lower than 10{\%} of the power capacity and the output voltage of PWM inverter, low-voltage and high-speed power devices can be applied to the series AF. Consequently, high power, high efficiency, and high harmonics elimination performance can be realized without increasing the number of inverter units.",
keywords = "High-power PWM inverter, Series active filter, Utility interactive inverter",
author = "Makoto Saito and Toshihisa Shimizu",
year = "2002",
month = "11",
day = "15",
doi = "10.1002/eej.10048",
language = "English",
volume = "141",
pages = "57--66",
journal = "Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)",
issn = "0424-7760",
publisher = "John Wiley and Sons Inc.",
number = "2",

}

TY - JOUR

T1 - A novel strategy for a high-power utility interactive inverter with a series active filter

AU - Saito, Makoto

AU - Shimizu, Toshihisa

PY - 2002/11/15

Y1 - 2002/11/15

N2 - High-power utility interactive inverters used for large-capacity energy storage systems are composed of multiple connected inverters, in order to realize high efficiency and high performance of the harmonic elimination characteristic simultaneously. Some disadvantages of multiple connected inverters, such as harmonic current flowing from an inverter unit to the other one, and increase of the number of inverter units, cannot be overcome easily. This paper presents a novel strategy for a high-power utility interactive inverter, which is composed of a large power with low-switching-frequency PWM inverter (high-power PWM inverter), an LC passive filter, and a series active filter (series AF). Because harmonic components contained in the utility line current are absorbed by the series AF, the switching frequency of the PWM inverter can be selected to about 1 kHz. In addition because the power capacity and the output voltage of the series AF can be suppressed lower than 10% of the power capacity and the output voltage of PWM inverter, low-voltage and high-speed power devices can be applied to the series AF. Consequently, high power, high efficiency, and high harmonics elimination performance can be realized without increasing the number of inverter units.

AB - High-power utility interactive inverters used for large-capacity energy storage systems are composed of multiple connected inverters, in order to realize high efficiency and high performance of the harmonic elimination characteristic simultaneously. Some disadvantages of multiple connected inverters, such as harmonic current flowing from an inverter unit to the other one, and increase of the number of inverter units, cannot be overcome easily. This paper presents a novel strategy for a high-power utility interactive inverter, which is composed of a large power with low-switching-frequency PWM inverter (high-power PWM inverter), an LC passive filter, and a series active filter (series AF). Because harmonic components contained in the utility line current are absorbed by the series AF, the switching frequency of the PWM inverter can be selected to about 1 kHz. In addition because the power capacity and the output voltage of the series AF can be suppressed lower than 10% of the power capacity and the output voltage of PWM inverter, low-voltage and high-speed power devices can be applied to the series AF. Consequently, high power, high efficiency, and high harmonics elimination performance can be realized without increasing the number of inverter units.

KW - High-power PWM inverter

KW - Series active filter

KW - Utility interactive inverter

UR - http://www.scopus.com/inward/record.url?scp=0037110854&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037110854&partnerID=8YFLogxK

U2 - 10.1002/eej.10048

DO - 10.1002/eej.10048

M3 - Article

VL - 141

SP - 57

EP - 66

JO - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

JF - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

SN - 0424-7760

IS - 2

ER -