太陽光アレイ回路の分断化およびブリッジ電流利用法のシミュレーションと解析

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: 2018/07/01

タイトル(英語): The Simulation and Analysis of the Usage of Segment Strings and Bridge Currents in Photovoltaic System

著者名: 李　暁楊（明治大学），熊野　照久（明治大学）

著者名(英語): Xiaoyang Li (Meiji University), Teruhisa Kumano (Meiji University)

キーワード: 太陽光発電，部分陰対策，分断化アレイ回路，ブリッジ電流，部分陰の位置判断　　photovoltaic system，partial shade countermeasure，segment strings，bridge currents，judgment of partial shade's position

要約(英語): In photovoltaic (PV) generation system, PV panels can be easily covered by shadows from obstacles around the power station. Usually, these shadows do not cover all of the panels so they are called partial shades. In this situation, PV system loses its power output very large. This paper gives a software and hardware's proposal to increase power output of PV system which is covered by partial shades. Because we used short bridges across neighboring strings and ammeters on them, we can get current data from them. Using these data we can realize some functions like judgment of the partial shades' area, power loss's forecasting, PV panels' online monitoring and so on. In this paper, we will propose an algorithm which can judge the position of partial shade automatically. As the result, it could judge the position of random 1 place partial shade, random 2 places partial shades and random 0, 1, 2 places partial shades. Next, we will propose a new MPPT algorithm which is using the data of bridge currents to make chopper system setting faster and more accurate.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.138 No.7 （2018）

本誌掲載ページ: 549-559 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/138/7/138_549/_article/-char/ja/