電気学会論文誌B(電力・エネルギー部門誌)
Online ISSN : 1348-8147
Print ISSN : 0385-4213
ISSN-L : 0385-4213
論文
配電線インピーダンス推定機能を実装した単相SCによる電圧不平衡抑制装置の動作検証
猪飼 千真青木 睦藤田 悠小林 浩小栗 美香山田 琢寛
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2017 年 137 巻 5 号 p. 356-363

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In resent years, because of increasing residential photovoltaic systems, voltage unbalance is being caused in distribution systems. It might be difficult to control voltage with allowable range using equipment such as Step Voltage Regulators and Load Ratio control Transformers. Therefore, it is important to suppress voltage unbalance. The method of voltage unbalance suppression using single-phase static capacitors (SCs) was proposed, and the effectiveness of the method was confirmed through experiments carried out on low voltage systems.

In this study, the authors propose the method of distribution line impedance estimation to prevent wrong control when distribution line impedance is changed. And we verify effect of the method by experiments with real-time simulator.

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