負荷グループ別高調波電流が第7次高調波電圧に及ぼす定量的影響

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2017/01/01

タイトル(英語): Quantitative Contribution by Each Different Load Group to the Seventh Harmonic Voltage in an Electric Power Distribution System

著者名: 雪平　謙二（（一財）電力中央研究所 システム技術研究所），岡田　有功（（一財）電力中央研究所 システム技術研究所），渡辺　雅人（東京電力ホールディングス（株）技術開発部）

著者名(英語): Kenji Yukihira (Central Research Institute of Electric Power Industry), Naotaka Okada (Central Research Institute of Electric Power Industry), Masato Watanabe (R&D Department, Tokyo Electric Power Company Holdings, Inc.)

キーワード: 高調波，定量分析，位相角，キャンセル効果，影響　　harmonics，quantitative analysis，phase angle，canceling effect，contribution

要約(英語): Although the number of pieces of equipment that emit harmonic currents has increased, harmonic voltages in Japan have gradually decreased since about 1999. In addition, harmonic voltages are generally lower during the daytime when there is greater usage of different types of equipment that emit harmonic currents. As a first step, we showed the reason for these strange phenomena qualitatively. The phase angles of the fifth harmonic current emitted by three-phase equipment of consumers using a 6.6kV or higher voltage power supply and those by the other equipment are almost opposite and they cancel each other out. As a second step, we classified equipment of all consumers into six different groups depending on the number of phases (i.e., single-phase or three-phase) and consumers' supply voltage and the ratio of the contribution of each group to the fifth harmonic voltage was then quantitatively clarified. As a third step, in this paper, we analyzed the seventh harmonic current in the same way as the fifth harmonic current. Time trends of the fifth and the seventh harmonic voltages are different but the estimated results of effective power of each group are almost same.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.137 No.1 （2017） 特集：平成28年電力・エネルギー部門大会

本誌掲載ページ: 2023/02/08 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/137/1/137_2/_article/-char/ja/