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Erratum published on 23 January 2017, see Energies 2017, 10(1), 146.

Open AccessArticle
Energies 2016, 9(3), 223; doi:10.3390/en9030223

Reduced-Capacity Inrush Current Suppressor Using a Matrix Converter in a Wind Power Generation System with Squirrel-Cage Induction Machines

1
Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
2
Department of Electrical Engineering, National Institute of Technology, Ube College, 2-14-1 Tokiwadai, Ube, Yamaguchi 755-8555, Japan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Jang-Ho Lee
Received: 29 December 2015 / Revised: 29 February 2016 / Accepted: 14 March 2016 / Published: 21 March 2016
(This article belongs to the Special Issue Selected Papers from 5th Asia-Pacific Forum on Renewable Energy)
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Abstract

This paper describes the reduced capacity of the inrush current suppressor using a matrix converter (MC) in a large-capacity wind power generation system (WPGS) with two squirrel-cage induction machines (SCIMs). These SCIMs are switched over depending on the wind speed. The input side of the MC is connected to the source in parallel. The output side of the MC is connected in series with the SCIM through matching transformers. The modulation method of the MC used is direct duty ratio pulse width modulation. The reference output voltage of the MC is decided by multiplying the SCIM current with the variable control gain. Therefore, the MC performs as resistors for the inrush current. Digital computer simulation is implemented to confirm the validity and practicability of the proposed inrush current suppressor using PSCAD/EMTDC (power system computer-aided design/electromagnetic transients including DC). Furthermore, the equivalent resistance of the MC is decided by the relationship between the equivalent resistance and the capacity of the MC. Simulation results demonstrate that the proposed inrush current suppressor can suppress the inrush current perfectly. View Full-Text
Keywords: wind power generation; matrix converter; inrush current; voltage sag wind power generation; matrix converter; inrush current; voltage sag
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MDPI and ACS Style

Shibata, S.; Yamada, H.; Tanaka, T.; Okamoto, M. Reduced-Capacity Inrush Current Suppressor Using a Matrix Converter in a Wind Power Generation System with Squirrel-Cage Induction Machines. Energies 2016, 9, 223.

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