このエントリーをはてなブックマークに追加
ID 34025
FullText URL
Author
Ogasawara, Satoshi
Akagi, Hirofumi
Abstract

The authors present the analysis of the neutral-point potential variation of the neutral-point-clamped voltage source PWM (pulse-width-modulation) inverter (NPC-VSI) for AC motor drives and static VAr compensators (SVC). The potential variation is analyzed with the focus on the current flowing out of or into the neutral point of the DC link. The theoretical minimum capacity of the DC link capacitors is discussed for its application to both a vector-controlled induction motor system of 2.2 kW and a SVC system of 10 MVA, 6.6 kV, 60 Hz. It is shown that the proposed control scheme makes it possible to suppress the neutral-point potential variation within a few percent, so that the total capacity of the DC link capacitors in the NPC-VSI is almost the same as that in the conventional voltage source inverter

Keywords
AC motors
electric drives
invertors
power capacitors
pulse width modulation
static VAr compensators
Note
Digital Object Identifier: 10.1109/IAS.1993.299015
Published with permission from the copyright holder. This is the institute's copy, as published in Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE, Oct. 2006, Volume 2, Pages 965-970.
Publisher URL:http://dx.doi.org/10.1109/IAS.1993.299015
Copyright © 1983 IEEE. All rights reserved.
Published Date
2006-10
Publication Title
Industry Applications Society Annual Meeting
Volume
volume2
Start Page
965
End Page
970
Content Type
Journal Article
language
英語
Refereed
True
DOI
Submission Path
electrical_engineering/14