軽い常時進み定力率運転とベクトルLDC制御の併用の配電線電圧上昇緩和と省エネルギーの効果

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: 2015/10/01

タイトル(英語): Voltage Rise Mitigation and Energy Saving in Distribution Network by Combined use of Light and Constant Leading Power Factor Operation of PVs and Vector-LDC Control of LTC

著者名: 細川　充海（北陸電力（株）技術開発研究所），京極　喜一郎（北陸電力（株）技術開発研究所），新庄　一雄（北陸電力（株）技術開発研究所），駒見　慎太郎（北陸電力（株）技術開発研究所）

著者名(英語): Mitsuumi Hosokawa (Engineering Research & Development Center, Hokuriku Electric Power Company), Kiichiro Kyogoku (Engineering Research & Development Center, Hokuriku Electric Power Company), Kazuo Shinjo (Engineering Research & Development Center, Hokuriku Electric Power Company), Shintaro Komami (Engineering Research & Development Center, Hokuriku Electric Power Company)

キーワード: 太陽光発電，配電系統，電圧上昇，進相運転，ベクトルLDC，逆潮流　　photovoltaic generation，distribution network，voltage rise，leading power factor operation，vector-LDC，reverse power flow

要約(英語): At early stage of PV's (Photovoltaic) penetration, heavy leading power factor operation was adopted so that LV might be reduced within regulation (107V in Japan). However, such an excessive reactive power control claims additional capacity in PCS (Power Conditioning System). In addition, such a local control could not realize desirable voltage all over distribution network, and as the result, could not realize desirable voltage of the PV itself. Behind such a control procedure lies misunderstanding of distribution network. It must be noticed that impedance of distribution transformer is almost pure reactance and larger than MV and LV network impedance. Therefore, distribution transformer and its tap control are the most prominent elements in distribution network voltage regulation. In this paper, the reason why light and constant leading power factor operation of PVs is sufficiently effective for mitigating overvoltage and voltage fluctuation in distribution network (especially when combined with transformer tap control by vector-LDC: Vector-computed type Line [voltage] Drop Compensation) is clarified through analysis on aggregated network model and simulation on a realistic detailed network model. Moreover, the contribution to energy saving of this combination is demonstrated.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.135 No.10 （2015）

本誌掲載ページ: 583-590 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/135/10/135_583/_article/-char/ja/