Neutral-point voltage control for a three-level DC-AC inverter using equivalent-input-disturbance approach

Jie Zhang; Ryuichi Yokoyama; Jinhua She

doi:10.1109/PEDG.2012.6254033

Neutral-point voltage control for a three-level DC-AC inverter using equivalent-input-disturbance approach

Jie Zhang^*, Ryuichi Yokoyama, Jinhua She

^*この研究の対応する著者

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

One problem with a single-voltage source, three-level inverter is the drafting of its neutral-point voltage. This may occur during transition or when unbalanced loads are connected to the inverter system. Variation of neutral-point voltage may greatly deteriorate the power quality. In this paper, we employ an equivalent-input-disturbance approach to deal with this problem. By adding an extra neutral leg, the control problem of neutralpoint voltage is converted to a disturbance rejection problem. This method suppresses the variation of the neutral-point voltage to a small level and reduces the capacity of capacitors. Simulation results show the effectiveness of the method.

本文言語	English
ホスト出版物のタイトル	Proceedings - 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012
ページ	398-402
ページ数	5
DOI	https://doi.org/10.1109/PEDG.2012.6254033
出版ステータス	Published - 2012
イベント	2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012 - Aalborg 継続期間: 2012 6月 25 → 2012 6月 28

Other

Other	2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012
City	Aalborg
Period	12/6/25 → 12/6/28

ASJC Scopus subject areas

エネルギー工学および電力技術
電子工学および電気工学

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10.1109/PEDG.2012.6254033

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引用スタイル

Zhang, J, Yokoyama, R & She, J 2012, Neutral-point voltage control for a three-level DC-AC inverter using equivalent-input-disturbance approach. in Proceedings - 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012., 6254033, pp. 398-402, 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012, Aalborg, 12/6/25. https://doi.org/10.1109/PEDG.2012.6254033

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abstract = "One problem with a single-voltage source, three-level inverter is the drafting of its neutral-point voltage. This may occur during transition or when unbalanced loads are connected to the inverter system. Variation of neutral-point voltage may greatly deteriorate the power quality. In this paper, we employ an equivalent-input-disturbance approach to deal with this problem. By adding an extra neutral leg, the control problem of neutralpoint voltage is converted to a disturbance rejection problem. This method suppresses the variation of the neutral-point voltage to a small level and reduces the capacity of capacitors. Simulation results show the effectiveness of the method.",

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Neutral-point voltage control for a three-level DC-AC inverter using equivalent-input-disturbance approach

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