電力系統ネットワーク縮約における誘導機負荷を模擬した二負荷法の精度

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: 2019/03/01

タイトル(英語): Accuracy of the “Two-Load Method” Considering Induction Motor Load in Power System Network Aggregation

著者名: 駒見　慎太郎（北陸電力（株）技術開発研究所），坂田　知昭（北陸電力（株）技術開発研究所），山田　誠司（北陸電力（株）技術開発研究所）

著者名(英語): Shintaro Komami (Engineering Research & Development Center, Hokuriku Electric Power Company), Tomoaki Sakata (Engineering Research & Development Center, Hokuriku Electric Power Company), Seiji Yamada (Engineering Research & Development Center, Hokuriku Electric Power Company)

キーワード: 電力系統縮約，誘導機負荷，負荷ブランチ，二素子法，二負荷法，三素子法　　power system aggregation，induction motor load，load branch，two-element method，two-load method，three-element method

要約(英語): The authors once proposed a practical power system aggregation method for network, generators, and their control systems. Since the main object then was to explain all of the new method, some issues were left unsolved in aggregation accuracy compared with the other methods. Mainly three issues as follows still remain unsolved.(1) To assess “Two-load method” that maintains power system loss like the proposed method.(2) To assess error caused only by network aggregation.(3) To assess cases with static load model.When “two-load method” is applied on detailed systems that consider load branch impedance, negative loads appear very often. As a measure, the paper introduces a new understanding of two-load method: A pair of positive and negative imaginary constant impedance loads having the same magnitude are added.Aggregation accuracy of three aggregation methods are compared on existing four local systems with small hydro generators having the same machine constants and control systems. “Two-load method” is not superior to “two-element method” and inferior to “three-element method” with induction motor load. Difference of aggregation accuracy of the three methods is not significant with static load.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.3 （2019）

本誌掲載ページ: 186-197 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/139/3/139_186/_article/-char/ja/