NDLI: A half-bridge inverter based Active Power Quality Compensator with a DC voltage balancer for electrified railways

Content Provider	IEEE Xplore Digital Library
Author	Tint Soe Win Baba, Y. Okamoto, M. Hiraki, E. Tanaka, T.
Copyright Year	2011
Description	Author affiliation: Graduate School of Science and Engineering, Yamaguchi University, 2-16-1, Tokiwadai, Ube, 755-8611, Japan (Tint Soe Win; Baba, Y.; Okamoto, M.; Hiraki, E.; Tanaka, T.)
Abstract	This paper proposes a half-bridge inverter based Active Power Quality Compensator (APQC) with a DC voltage balancer for electrified railways. The APQC is composed of three-leg structured power devices with two common DC capacitors. The first two legs perform as two half-bridge inverters to generate compensation currents and the third-leg is used for DC voltage balancer. The first-leg is connected to α-phase and the second-leg is connected to β-phase. Two DC capacitors are connected in series and midpoint is grounded. These two half-bridge inverters exchange and balance active power for two feeders through two common DC capacitors and compensate reactive and harmonic components of the distorted load currents. The third-leg controls two common DC capacitors to balance voltage level of each other. Using proposed APQC, the primary side of Scott transformer attains balanced and sinusoidal source currents. The principle and control algorithm of proposed a half-bridge inverter based APQC is discussed in detail. The proposed APQC is confirmed by both the PSIM computer simulation software and prototype experiment system. Simulation results show that the proposed APQC can achieve balanced and sinusoidal source currents in secondary side of Scott transformer.
Starting Page	185
Ending Page	190
File Size	2199783
Page Count	6
File Format	PDF
ISBN	9781612849997
ISSN	21645264
e-ISBN	9781457700019
e-ISBN	9781457700002
DOI	10.1109/PEDS.2011.6147244
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-05
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Capacitors Integrated circuits Power quality Voltage control Harmonic analysis Rail transportation constant dc capacitor voltage control electrified railways active power quality compensator half-bridge inverter three-leg inverter voltage balancer
Content Type	Text
Resource Type	Article

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